Program: 87428
Project: 87428
Buggy source:
/** 
 * Handle inputting a code point to the editor. Non-special keys are those that generate a single code point. This includes all letters, digits, punctuation, separators, emoji. It excludes keys that manage keyboard-related stuff like shift, language switch, settings, layout switch, or any key that results in multiple code points like the ".com" key.
 * @param settingsValues The current settings values.
 * @param codePoint the code point associated with the key.
 * @param x the x-coordinate of the key press, or Contants.NOT_A_COORDINATE if not applicable.
 * @param y the y-coordinate of the key press, or Contants.NOT_A_COORDINATE if not applicable.
 * @param spaceState the space state at start of the batch input.
 * @return whether this caused an auto-correction to happen.
 */
private boolean handleNonSpecialCharacter(final SettingsValues settingsValues,final int codePoint,final int x,final int y,final int spaceState,final KeyboardSwitcher keyboardSwitcher,final LatinIME.UIHandler handler){
  mSpaceState=SpaceState.NONE;
  final boolean didAutoCorrect;
  if (settingsValues.isWordSeparator(codePoint) || Character.getType(codePoint) == Character.OTHER_SYMBOL) {
    didAutoCorrect=handleSeparator(settingsValues,codePoint,Constants.SUGGESTION_STRIP_COORDINATE == x,spaceState,keyboardSwitcher,handler);
    if (settingsValues.mIsInternal) {
      LatinImeLoggerUtils.onSeparator((char)codePoint,x,y);
    }
  }
 else {
    didAutoCorrect=false;
    if (SpaceState.PHANTOM == spaceState) {
      if (settingsValues.mIsInternal) {
        if (mWordComposer.isComposingWord() && mWordComposer.isBatchMode()) {
          LatinImeLoggerUtils.onAutoCorrection("String_Node_Str",mWordComposer.getTypedWord(),"String_Node_Str",mWordComposer);
        }
      }
      if (mWordComposer.isCursorFrontOrMiddleOfComposingWord()) {
        resetEntireInputState(settingsValues,mConnection.getExpectedSelectionStart(),mConnection.getExpectedSelectionEnd());
      }
 else {
        commitTyped(settingsValues,LastComposedWord.NOT_A_SEPARATOR);
      }
    }
    handleNonSeparator(settingsValues,codePoint,x,y,spaceState,keyboardSwitcher,handler);
  }
  return didAutoCorrect;
}

Fixed version (ground truth):
/** 
 * Handle inputting a code point to the editor. Non-special keys are those that generate a single code point. This includes all letters, digits, punctuation, separators, emoji. It excludes keys that manage keyboard-related stuff like shift, language switch, settings, layout switch, or any key that results in multiple code points like the ".com" key.
 * @param settingsValues The current settings values.
 * @param codePoint the code point associated with the key.
 * @param x the x-coordinate of the key press, or Contants.NOT_A_COORDINATE if not applicable.
 * @param y the y-coordinate of the key press, or Contants.NOT_A_COORDINATE if not applicable.
 * @param spaceState the space state at start of the batch input.
 * @return whether this caused an auto-correction to happen.
 */
private boolean handleNonSpecialCharacter(final SettingsValues settingsValues,final int codePoint,final int x,final int y,final int spaceState,final KeyboardSwitcher keyboardSwitcher,final LatinIME.UIHandler handler){
  mSpaceState=SpaceState.NONE;
  final boolean didAutoCorrect;
  if (settingsValues.isWordSeparator(codePoint) || Character.getType(codePoint) == Character.OTHER_SYMBOL) {
    didAutoCorrect=handleSeparator(settingsValues,codePoint,Constants.SUGGESTION_STRIP_COORDINATE == x,spaceState,keyboardSwitcher,handler);
    if (settingsValues.mIsInternal) {
      LatinImeLoggerUtils.onSeparator((char)codePoint,x,y);
    }
  }
 else {
    didAutoCorrect=false;
    if (SpaceState.PHANTOM == spaceState) {
      if (settingsValues.mIsInternal) {
        if (mWordComposer.isComposingWord() && mWordComposer.isBatchMode()) {
          LatinImeLoggerUtils.onAutoCorrection("String_Node_Str",mWordComposer.getTypedWord(),"String_Node_Str",mWordComposer);
        }
      }
      if (mWordComposer.isCursorFrontOrMiddleOfComposingWord()) {
        resetEntireInputState(settingsValues,mConnection.getExpectedSelectionStart(),mConnection.getExpectedSelectionEnd(),true);
      }
 else {
        commitTyped(settingsValues,LastComposedWord.NOT_A_SEPARATOR);
      }
    }
    handleNonSeparator(settingsValues,codePoint,x,y,spaceState,keyboardSwitcher,handler);
  }
  return didAutoCorrect;
}