Program: 87426
Project: 87426
Buggy source:
/** 
 * Handle input of a separator code point.
 * @param settingsValues The current settings values.
 * @param codePoint the code point associated with the key.
 * @param isFromSuggestionStrip whether this code point comes from the suggestion strip.
 * @param spaceState the space state at start of the batch input.
 * @return whether this caused an auto-correction to happen.
 */
private boolean handleSeparator(final SettingsValues settingsValues,final int codePoint,final boolean isFromSuggestionStrip,final int spaceState,final KeyboardSwitcher keyboardSwitcher,final LatinIME.UIHandler handler){
  boolean didAutoCorrect=false;
  final boolean shouldAvoidSendingCode=Constants.CODE_SPACE == codePoint && !settingsValues.mSpacingAndPunctuations.mCurrentLanguageHasSpaces && mWordComposer.isComposingWord();
  if (mWordComposer.isCursorFrontOrMiddleOfComposingWord()) {
    resetEntireInputState(settingsValues,mConnection.getExpectedSelectionStart(),mConnection.getExpectedSelectionEnd());
  }
  if (mWordComposer.isComposingWord()) {
    if (settingsValues.mCorrectionEnabled) {
      final String separator=shouldAvoidSendingCode ? LastComposedWord.NOT_A_SEPARATOR : StringUtils.newSingleCodePointString(codePoint);
      commitCurrentAutoCorrection(settingsValues,separator,handler);
      didAutoCorrect=true;
    }
 else {
      commitTyped(settingsValues,StringUtils.newSingleCodePointString(codePoint));
    }
  }
  final boolean swapWeakSpace=maybeStripSpace(settingsValues,codePoint,spaceState,isFromSuggestionStrip);
  final boolean isInsideDoubleQuoteOrAfterDigit=Constants.CODE_DOUBLE_QUOTE == codePoint && mConnection.isInsideDoubleQuoteOrAfterDigit();
  final boolean needsPrecedingSpace;
  if (SpaceState.PHANTOM != spaceState) {
    needsPrecedingSpace=false;
  }
 else   if (Constants.CODE_DOUBLE_QUOTE == codePoint) {
    needsPrecedingSpace=!isInsideDoubleQuoteOrAfterDigit;
  }
 else {
    needsPrecedingSpace=settingsValues.isUsuallyPrecededBySpace(codePoint);
  }
  if (needsPrecedingSpace) {
    promotePhantomSpace(settingsValues);
  }
  if (ProductionFlag.USES_DEVELOPMENT_ONLY_DIAGNOSTICS) {
    ResearchLogger.latinIME_handleSeparator(codePoint,mWordComposer.isComposingWord());
  }
  if (!shouldAvoidSendingCode) {
    sendKeyCodePoint(settingsValues,codePoint);
  }
  if (Constants.CODE_SPACE == codePoint) {
    if (settingsValues.isSuggestionsRequested()) {
      if (maybeDoubleSpacePeriod(settingsValues,handler)) {
        keyboardSwitcher.updateShiftState();
        mSpaceState=SpaceState.DOUBLE;
      }
 else       if (!mSuggestedWords.isPunctuationSuggestions()) {
        mSpaceState=SpaceState.WEAK;
      }
    }
    handler.startDoubleSpacePeriodTimer();
    handler.postUpdateSuggestionStrip();
  }
 else {
    if (swapWeakSpace) {
      swapSwapperAndSpace(keyboardSwitcher);
      mSpaceState=SpaceState.SWAP_PUNCTUATION;
    }
 else     if ((SpaceState.PHANTOM == spaceState && settingsValues.isUsuallyFollowedBySpace(codePoint)) || (Constants.CODE_DOUBLE_QUOTE == codePoint && isInsideDoubleQuoteOrAfterDigit)) {
      mSpaceState=SpaceState.PHANTOM;
    }
    mSuggestionStripViewAccessor.setNeutralSuggestionStrip();
  }
  keyboardSwitcher.updateShiftState();
  return didAutoCorrect;
}

Fixed version (ground truth):
/** 
 * Handle input of a separator code point.
 * @param settingsValues The current settings values.
 * @param codePoint the code point associated with the key.
 * @param isFromSuggestionStrip whether this code point comes from the suggestion strip.
 * @param spaceState the space state at start of the batch input.
 * @return whether this caused an auto-correction to happen.
 */
private boolean handleSeparator(final SettingsValues settingsValues,final int codePoint,final boolean isFromSuggestionStrip,final int spaceState,final KeyboardSwitcher keyboardSwitcher,final LatinIME.UIHandler handler){
  boolean didAutoCorrect=false;
  final boolean shouldAvoidSendingCode=Constants.CODE_SPACE == codePoint && !settingsValues.mSpacingAndPunctuations.mCurrentLanguageHasSpaces && mWordComposer.isComposingWord();
  if (mWordComposer.isCursorFrontOrMiddleOfComposingWord()) {
    resetEntireInputState(settingsValues,mConnection.getExpectedSelectionStart(),mConnection.getExpectedSelectionEnd(),true);
  }
  if (mWordComposer.isComposingWord()) {
    if (settingsValues.mCorrectionEnabled) {
      final String separator=shouldAvoidSendingCode ? LastComposedWord.NOT_A_SEPARATOR : StringUtils.newSingleCodePointString(codePoint);
      commitCurrentAutoCorrection(settingsValues,separator,handler);
      didAutoCorrect=true;
    }
 else {
      commitTyped(settingsValues,StringUtils.newSingleCodePointString(codePoint));
    }
  }
  final boolean swapWeakSpace=maybeStripSpace(settingsValues,codePoint,spaceState,isFromSuggestionStrip);
  final boolean isInsideDoubleQuoteOrAfterDigit=Constants.CODE_DOUBLE_QUOTE == codePoint && mConnection.isInsideDoubleQuoteOrAfterDigit();
  final boolean needsPrecedingSpace;
  if (SpaceState.PHANTOM != spaceState) {
    needsPrecedingSpace=false;
  }
 else   if (Constants.CODE_DOUBLE_QUOTE == codePoint) {
    needsPrecedingSpace=!isInsideDoubleQuoteOrAfterDigit;
  }
 else {
    needsPrecedingSpace=settingsValues.isUsuallyPrecededBySpace(codePoint);
  }
  if (needsPrecedingSpace) {
    promotePhantomSpace(settingsValues);
  }
  if (ProductionFlag.USES_DEVELOPMENT_ONLY_DIAGNOSTICS) {
    ResearchLogger.latinIME_handleSeparator(codePoint,mWordComposer.isComposingWord());
  }
  if (!shouldAvoidSendingCode) {
    sendKeyCodePoint(settingsValues,codePoint);
  }
  if (Constants.CODE_SPACE == codePoint) {
    if (settingsValues.isSuggestionsRequested()) {
      if (maybeDoubleSpacePeriod(settingsValues,handler)) {
        keyboardSwitcher.updateShiftState();
        mSpaceState=SpaceState.DOUBLE;
      }
 else       if (!mSuggestedWords.isPunctuationSuggestions()) {
        mSpaceState=SpaceState.WEAK;
      }
    }
    handler.startDoubleSpacePeriodTimer();
    handler.postUpdateSuggestionStrip();
  }
 else {
    if (swapWeakSpace) {
      swapSwapperAndSpace(keyboardSwitcher);
      mSpaceState=SpaceState.SWAP_PUNCTUATION;
    }
 else     if ((SpaceState.PHANTOM == spaceState && settingsValues.isUsuallyFollowedBySpace(codePoint)) || (Constants.CODE_DOUBLE_QUOTE == codePoint && isInsideDoubleQuoteOrAfterDigit)) {
      mSpaceState=SpaceState.PHANTOM;
    }
    mSuggestionStripViewAccessor.setNeutralSuggestionStrip();
  }
  keyboardSwitcher.updateShiftState();
  return didAutoCorrect;
}