Program: 199
Project: 199
Buggy source:
public boolean processExEntry(@NotNull final Editor editor,@NotNull final DataContext context){
  ExEntryPanel panel=ExEntryPanel.getInstance();
  panel.deactivate();
  boolean res=true;
  int flags=0;
  try {
    CommandState.getInstance(editor).popState();
    logger.debug("String_Node_Str");
    final String text=panel.getText();
    record(editor,text);
    if (logger.isDebugEnabled())     logger.debug("String_Node_Str" + SwingUtilities.isEventDispatchThread());
    if (panel.getLabel().equals("String_Node_Str")) {
      flags=CommandParser.getInstance().processCommand(editor,context,text,1);
      if (logger.isDebugEnabled())       logger.debug("String_Node_Str" + flags);
      if (CommandState.getInstance(editor).getMode() == CommandState.Mode.VISUAL) {
        VimPlugin.getMotion().exitVisual(editor);
      }
    }
 else {
      int pos=VimPlugin.getSearch().search(editor,text,panel.getCount(),panel.getLabel().equals("String_Node_Str") ? Command.FLAG_SEARCH_FWD : Command.FLAG_SEARCH_REV,true);
      if (pos == -1) {
        res=false;
      }
    }
  }
 catch (  ExException e) {
    VimPlugin.showMessage(e.getMessage());
    VimPlugin.indicateError();
    res=false;
  }
catch (  Exception bad) {
    ProcessGroup.logger.error(bad);
    VimPlugin.indicateError();
    res=false;
  }
 finally {
    final int flg=flags;
    final Project project=PlatformDataKeys.PROJECT.getData(context);
    SwingUtilities.invokeLater(new Runnable(){
      public void run(){
        if (!ApplicationManager.getApplication().isUnitTestMode() && (flg & CommandParser.RES_DONT_REOPEN) == 0) {
          VirtualFile vf=EditorData.getVirtualFile(editor);
          if (project != null && vf != null) {
            FileEditorManager.getInstance(project).openFile(vf,true);
          }
        }
      }
    }
);
  }
  return res;
}

Fixed version (ground truth):
public boolean processExEntry(@NotNull final Editor editor,@NotNull final DataContext context){
  ExEntryPanel panel=ExEntryPanel.getInstance();
  panel.deactivate(true);
  boolean res=true;
  int flags=0;
  try {
    CommandState.getInstance(editor).popState();
    logger.debug("String_Node_Str");
    final String text=panel.getText();
    record(editor,text);
    if (logger.isDebugEnabled())     logger.debug("String_Node_Str" + SwingUtilities.isEventDispatchThread());
    if (panel.getLabel().equals("String_Node_Str")) {
      flags=CommandParser.getInstance().processCommand(editor,context,text,1);
      if (logger.isDebugEnabled())       logger.debug("String_Node_Str" + flags);
      if (CommandState.getInstance(editor).getMode() == CommandState.Mode.VISUAL) {
        VimPlugin.getMotion().exitVisual(editor);
      }
    }
 else {
      int pos=VimPlugin.getSearch().search(editor,text,panel.getCount(),panel.getLabel().equals("String_Node_Str") ? Command.FLAG_SEARCH_FWD : Command.FLAG_SEARCH_REV,true);
      if (pos == -1) {
        res=false;
      }
    }
  }
 catch (  ExException e) {
    VimPlugin.showMessage(e.getMessage());
    VimPlugin.indicateError();
    res=false;
  }
catch (  Exception bad) {
    ProcessGroup.logger.error(bad);
    VimPlugin.indicateError();
    res=false;
  }
  return res;
}