Program: 157804
Project: 157804
Buggy source:
@Override public Mode chooseMode(Modes modes,Ability source,Game game){
  updateGameStatePriority("String_Node_Str",game);
  if (modes.size() > 1) {
    MageObject obj=game.getObject(source.getSourceId());
    Map<UUID,String> modeMap=new LinkedHashMap<>();
    AvailableModes:     for (    Mode mode : modes.getAvailableModes(source,game)) {
      int timesSelected=0;
      for (      UUID selectedModeId : modes.getSelectedModes()) {
        Mode selectedMode=modes.get(selectedModeId);
        if (mode.getId().equals(selectedMode.getId())) {
          if (modes.isEachModeMoreThanOnce()) {
            timesSelected++;
          }
 else {
            continue AvailableModes;
          }
        }
      }
      if (mode.getTargets().canChoose(source.getSourceId(),source.getControllerId(),game)) {
        String modeText=mode.getEffects().getText(mode);
        if (obj != null) {
          modeText=modeText.replace("String_Node_Str",obj.getName()).replace("String_Node_Str",obj.getName());
        }
        if (modes.isEachModeMoreThanOnce()) {
          if (timesSelected > 0) {
            modeText="String_Node_Str" + timesSelected + "String_Node_Str"+ modeText;
          }
        }
        modeMap.put(mode.getId(),modeText);
      }
    }
    if (!modeMap.isEmpty()) {
      boolean done=false;
      while (!done) {
        if (!isExecutingMacro()) {
          game.fireGetModeEvent(playerId,"String_Node_Str",modeMap);
        }
        waitForResponse(game);
        if (response.getUUID() != null) {
          for (          Mode mode : modes.getAvailableModes(source,game)) {
            if (mode.getId().equals(response.getUUID())) {
              return mode;
            }
          }
        }
        if (source.getAbilityType() != AbilityType.TRIGGERED) {
          done=true;
        }
        if (!canRespond()) {
          return null;
        }
      }
    }
    return null;
  }
  return modes.getMode();
}

Fixed version (ground truth):
@Override public Mode chooseMode(Modes modes,Ability source,Game game){
  updateGameStatePriority("String_Node_Str",game);
  if (modes.size() > 1) {
    MageObject obj=game.getObject(source.getSourceId());
    Map<UUID,String> modeMap=new LinkedHashMap<>();
    AvailableModes:     for (    Mode mode : modes.getAvailableModes(source,game)) {
      int timesSelected=0;
      for (      UUID selectedModeId : modes.getSelectedModes()) {
        Mode selectedMode=modes.get(selectedModeId);
        if (mode.getId().equals(selectedMode.getId())) {
          if (modes.isEachModeMoreThanOnce()) {
            timesSelected++;
          }
 else {
            continue AvailableModes;
          }
        }
      }
      if (mode.getTargets().canChoose(source.getSourceId(),source.getControllerId(),game)) {
        String modeText=mode.getEffects().getText(mode);
        if (obj != null) {
          modeText=modeText.replace("String_Node_Str",obj.getName()).replace("String_Node_Str",obj.getName());
        }
        if (modes.isEachModeMoreThanOnce()) {
          if (timesSelected > 0) {
            modeText="String_Node_Str" + timesSelected + "String_Node_Str"+ modeText;
          }
        }
        modeMap.put(mode.getId(),modeText);
      }
    }
    if (!modeMap.isEmpty()) {
      boolean done=false;
      while (!done) {
        prepareForResponse(game);
        if (!isExecutingMacro()) {
          game.fireGetModeEvent(playerId,"String_Node_Str",modeMap);
        }
        waitForResponse(game);
        if (response.getUUID() != null) {
          for (          Mode mode : modes.getAvailableModes(source,game)) {
            if (mode.getId().equals(response.getUUID())) {
              return mode;
            }
          }
        }
        if (source.getAbilityType() != AbilityType.TRIGGERED) {
          done=true;
        }
        if (!canRespond()) {
          return null;
        }
      }
    }
    return null;
  }
  return modes.getMode();
}