Program: 94075
Project: 94075
Buggy source:
public static void initGroups(final XC_LoadPackage.LoadPackageParam lpparam) throws Throwable {
  readGroups();
  final Class<?> Friend=findClass(Obfuscator.select.FRIEND_CLASS,lpparam.classLoader);
  final Class<?> Ly=findClass(Obfuscator.groups.STORY_CLASS,lpparam.classLoader);
  XposedHelpers.findAndHookMethod(Obfuscator.groups.STORYARRAY_CLASS,lpparam.classLoader,Obfuscator.groups.STORYARRAY_METHOD,new XC_MethodHook(){
    @Override protected void afterHookedMethod(    MethodHookParam param) throws Throwable {
      readGroups();
      ArrayList result=(ArrayList)param.getResult();
      ArrayList newResult=new ArrayList();
      Object edit=XposedHelpers.newInstance(Ly,"String_Node_Str","String_Node_Str");
      XposedHelpers.setAdditionalInstanceField(edit,"String_Node_Str",true);
      if (!result.contains(edit)) {
        newResult.add(edit);
      }
      for (      Group g : groups) {
        Object group=XposedHelpers.newInstance(Ly,"String_Node_Str" + g.name,g.name);
        XposedHelpers.setAdditionalInstanceField(group,"String_Node_Str",g);
        if (!result.contains(group)) {
          newResult.add(group);
        }
      }
      newResult.addAll(result);
      param.setResult(newResult);
    }
  }
);
  XposedHelpers.findAndHookMethod(Obfuscator.groups.STORYSECTION_CLASS,lpparam.classLoader,"String_Node_Str",findClass("String_Node_Str",lpparam.classLoader),int.class,new XC_MethodHook(){
    @Override protected void afterHookedMethod(    final MethodHookParam param) throws Throwable {
      Object element=callMethod(XposedHelpers.getObjectField(param.thisObject,"String_Node_Str"),"String_Node_Str",param.args[1]);
      if (XposedHelpers.getAdditionalInstanceField(element,"String_Node_Str") != null) {
        CheckBox k=(CheckBox)XposedHelpers.getObjectField(param.args[0],"String_Node_Str");
        k.setVisibility(View.GONE);
        k.setOnCheckedChangeListener(null);
        k.setOnClickListener(null);
        ((View)XposedHelpers.getObjectField(param.args[0],"String_Node_Str")).setOnClickListener(new View.OnClickListener(){
          @Override public void onClick(          View v){
            FragmentTransaction ft=HookMethods.SnapContext.getFragmentManager().beginTransaction();
            Fragment prev=HookMethods.SnapContext.getFragmentManager().findFragmentByTag("String_Node_Str");
            if (prev != null) {
              ft.remove(prev);
            }
            ft.addToBackStack(null);
            DialogFragment newFragment=GroupDialog.newInstance();
            newFragment.show(ft,"String_Node_Str");
          }
        }
);
      }
      final Group group=(Group)XposedHelpers.getAdditionalInstanceField(element,"String_Node_Str");
      if (group == null)       return;
      HashMap<String,Boolean> checks=(HashMap<String,Boolean>)XposedHelpers.getAdditionalInstanceField(param.thisObject,"String_Node_Str");
      if (checks == null) {
        checks=new HashMap<>();
        XposedHelpers.setAdditionalInstanceField(param.thisObject,"String_Node_Str",checks);
      }
      final CheckBox check=(CheckBox)XposedHelpers.getObjectField(param.args[0],"String_Node_Str");
      if (!checks.containsKey(group.name)) {
        checks.put(group.name,false);
      }
 else {
        check.setOnCheckedChangeListener(null);
        check.setChecked(checks.get(group.name));
      }
      final HashMap<String,Boolean> finalChecks=checks;
      check.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
        @Override public void onCheckedChanged(        CompoundButton buttonView,        boolean isChecked){
          finalChecks.put(group.name,isChecked);
          List f=(List)XposedHelpers.getObjectField(param.thisObject,"String_Node_Str");
          for (          String user : group.users) {
            for (            Object ii : f) {
              if (Friend.isInstance(ii) && ((String)XposedHelpers.getObjectField(ii,"String_Node_Str")).equalsIgnoreCase(user)) {
                callMethod(XposedHelpers.getObjectField(param.thisObject,"String_Node_Str"),"String_Node_Str",new Class[]{int.class,findClass(Obfuscator.groups.INTERFACE,lpparam.classLoader),boolean.class},callMethod(param.args[0],"String_Node_Str"),ii,isChecked);
                break;
              }
            }
          }
        }
      }
);
    }
  }
);
}

Fixed version (ground truth):
public static void initGroups(final XC_LoadPackage.LoadPackageParam lpparam) throws Throwable {
  readGroups();
  final Class<?> Friend=findClass(Obfuscator.select.FRIEND_CLASS,lpparam.classLoader);
  final Class<?> Ly=findClass(Obfuscator.groups.STORY_CLASS,lpparam.classLoader);
  XposedHelpers.findAndHookMethod(Obfuscator.groups.STORYARRAY_CLASS,lpparam.classLoader,Obfuscator.groups.STORYARRAY_METHOD,new XC_MethodHook(){
    @Override protected void afterHookedMethod(    MethodHookParam param) throws Throwable {
      readGroups();
      ArrayList result=(ArrayList)param.getResult();
      ArrayList<Object> newResult=new ArrayList<>();
      Object edit=XposedHelpers.newInstance(Ly,"String_Node_Str","String_Node_Str");
      XposedHelpers.setAdditionalInstanceField(edit,"String_Node_Str",true);
      if (!result.contains(edit))       newResult.add(edit);
      for (      Group g : groups) {
        Object group=XposedHelpers.newInstance(Ly,"String_Node_Str" + g.name,g.name);
        XposedHelpers.setAdditionalInstanceField(group,"String_Node_Str",g);
        if (!result.contains(group))         newResult.add(group);
      }
      newResult.addAll(result);
      param.setResult(newResult);
    }
  }
);
  XposedHelpers.findAndHookMethod(Obfuscator.groups.STORYSECTION_CLASS,lpparam.classLoader,"String_Node_Str",findClass("String_Node_Str",lpparam.classLoader),int.class,new XC_MethodHook(){
    @Override protected void afterHookedMethod(    final MethodHookParam param) throws Throwable {
      Object element=callMethod(XposedHelpers.getObjectField(param.thisObject,"String_Node_Str"),"String_Node_Str",param.args[1]);
      if (XposedHelpers.getAdditionalInstanceField(element,"String_Node_Str") != null) {
        CheckBox k=(CheckBox)XposedHelpers.getObjectField(param.args[0],"String_Node_Str");
        k.setVisibility(View.GONE);
        k.setOnCheckedChangeListener(null);
        k.setOnClickListener(null);
        ((View)XposedHelpers.getObjectField(param.args[0],"String_Node_Str")).setOnClickListener(new View.OnClickListener(){
          @Override public void onClick(          View v){
            FragmentTransaction ft=HookMethods.SnapContext.getFragmentManager().beginTransaction();
            Fragment prev=HookMethods.SnapContext.getFragmentManager().findFragmentByTag("String_Node_Str");
            if (prev != null) {
              ft.remove(prev);
            }
            ft.addToBackStack(null);
            DialogFragment newFragment=GroupDialog.newInstance();
            newFragment.show(ft,"String_Node_Str");
          }
        }
);
      }
      final Group group=(Group)XposedHelpers.getAdditionalInstanceField(element,"String_Node_Str");
      if (group == null)       return;
      HashMap<String,Boolean> checks=(HashMap<String,Boolean>)XposedHelpers.getAdditionalInstanceField(param.thisObject,"String_Node_Str");
      if (checks == null) {
        checks=new HashMap<>();
        XposedHelpers.setAdditionalInstanceField(param.thisObject,"String_Node_Str",checks);
      }
      final CheckBox check=(CheckBox)XposedHelpers.getObjectField(param.args[0],"String_Node_Str");
      if (!checks.containsKey(group.name)) {
        checks.put(group.name,false);
      }
 else {
        check.setOnCheckedChangeListener(null);
        check.setChecked(checks.get(group.name));
      }
      final HashMap<String,Boolean> finalChecks=checks;
      check.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
        @Override public void onCheckedChanged(        CompoundButton buttonView,        boolean isChecked){
          finalChecks.put(group.name,isChecked);
          List f=(List)XposedHelpers.getObjectField(param.thisObject,"String_Node_Str");
          for (          String user : group.users) {
            for (            Object ii : f) {
              if (Friend.isInstance(ii) && ((String)XposedHelpers.getObjectField(ii,"String_Node_Str")).equalsIgnoreCase(user)) {
                callMethod(XposedHelpers.getObjectField(param.thisObject,"String_Node_Str"),"String_Node_Str",new Class[]{int.class,findClass(Obfuscator.groups.INTERFACE,lpparam.classLoader),boolean.class},callMethod(param.args[0],"String_Node_Str"),ii,isChecked);
                break;
              }
            }
          }
        }
      }
);
    }
  }
);
}