Program: 87412
Project: 87412
Buggy source:
/** 
 * Handle input of a separator code point.
 * @param inputTransaction The transaction in progress.
 * @param isFromSuggestionStrip whether this code point comes from the suggestion strip.
 * @return whether this caused an auto-correction to happen.
 */
private boolean handleSeparator(final InputTransaction inputTransaction,final boolean isFromSuggestionStrip,final LatinIME.UIHandler handler){
  final int codePoint=inputTransaction.mEvent.mCodePoint;
  boolean didAutoCorrect=false;
  final boolean shouldAvoidSendingCode=Constants.CODE_SPACE == codePoint && !inputTransaction.mSettingsValues.mSpacingAndPunctuations.mCurrentLanguageHasSpaces && mWordComposer.isComposingWord();
  if (mWordComposer.isCursorFrontOrMiddleOfComposingWord()) {
    resetEntireInputState(mConnection.getExpectedSelectionStart(),mConnection.getExpectedSelectionEnd(),true);
  }
  if (mWordComposer.isComposingWord()) {
    if (inputTransaction.mSettingsValues.mCorrectionEnabled) {
      final String separator=shouldAvoidSendingCode ? LastComposedWord.NOT_A_SEPARATOR : StringUtils.newSingleCodePointString(codePoint);
      commitCurrentAutoCorrection(inputTransaction.mSettingsValues,separator,handler);
      didAutoCorrect=true;
    }
 else {
      commitTyped(inputTransaction.mSettingsValues,StringUtils.newSingleCodePointString(codePoint));
    }
  }
  final boolean swapWeakSpace=maybeStripSpace(inputTransaction,isFromSuggestionStrip);
  final boolean isInsideDoubleQuoteOrAfterDigit=Constants.CODE_DOUBLE_QUOTE == codePoint && mConnection.isInsideDoubleQuoteOrAfterDigit();
  final boolean needsPrecedingSpace;
  if (SpaceState.PHANTOM != inputTransaction.mSpaceState) {
    needsPrecedingSpace=false;
  }
 else   if (Constants.CODE_DOUBLE_QUOTE == codePoint) {
    needsPrecedingSpace=!isInsideDoubleQuoteOrAfterDigit;
  }
 else {
    needsPrecedingSpace=inputTransaction.mSettingsValues.isUsuallyPrecededBySpace(codePoint);
  }
  if (needsPrecedingSpace) {
    promotePhantomSpace(inputTransaction.mSettingsValues);
  }
  if (ProductionFlag.USES_DEVELOPMENT_ONLY_DIAGNOSTICS) {
    ResearchLogger.latinIME_handleSeparator(codePoint,mWordComposer.isComposingWord());
  }
  if (!shouldAvoidSendingCode) {
    sendKeyCodePoint(inputTransaction.mSettingsValues,codePoint);
  }
  if (Constants.CODE_SPACE == codePoint) {
    if (inputTransaction.mSettingsValues.isSuggestionsRequested()) {
      if (maybeDoubleSpacePeriod(inputTransaction)) {
        inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
        mSpaceState=SpaceState.DOUBLE;
      }
 else       if (!mSuggestedWords.isPunctuationSuggestions()) {
        mSpaceState=SpaceState.WEAK;
      }
    }
    startDoubleSpacePeriodCountdown(inputTransaction);
    inputTransaction.setRequiresUpdateSuggestions();
  }
 else {
    if (swapWeakSpace) {
      swapSwapperAndSpace(inputTransaction);
      mSpaceState=SpaceState.SWAP_PUNCTUATION;
    }
 else     if ((SpaceState.PHANTOM == inputTransaction.mSpaceState && inputTransaction.mSettingsValues.isUsuallyFollowedBySpace(codePoint)) || (Constants.CODE_DOUBLE_QUOTE == codePoint && isInsideDoubleQuoteOrAfterDigit)) {
      mSpaceState=SpaceState.PHANTOM;
    }
    mSuggestionStripViewAccessor.setNeutralSuggestionStrip();
  }
  inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
  return didAutoCorrect;
}

Fixed version (ground truth):
/** 
 * Handle input of a separator code point.
 * @param inputTransaction The transaction in progress.
 * @param isFromSuggestionStrip whether this code point comes from the suggestion strip.
 * @return whether this caused an auto-correction to happen.
 */
private boolean handleSeparator(final InputTransaction inputTransaction,final boolean isFromSuggestionStrip,final LatinIME.UIHandler handler){
  final int codePoint=inputTransaction.mEvent.mCodePoint;
  boolean didAutoCorrect=false;
  final boolean shouldAvoidSendingCode=Constants.CODE_SPACE == codePoint && !inputTransaction.mSettingsValues.mSpacingAndPunctuations.mCurrentLanguageHasSpaces && mWordComposer.isComposingWord();
  if (mWordComposer.isCursorFrontOrMiddleOfComposingWord()) {
    resetEntireInputState(mConnection.getExpectedSelectionStart(),mConnection.getExpectedSelectionEnd(),true);
  }
  if (mWordComposer.isComposingWord()) {
    if (inputTransaction.mSettingsValues.mCorrectionEnabled) {
      final String separator=shouldAvoidSendingCode ? LastComposedWord.NOT_A_SEPARATOR : StringUtils.newSingleCodePointString(codePoint);
      commitCurrentAutoCorrection(inputTransaction.mSettingsValues,separator,handler);
      didAutoCorrect=true;
    }
 else {
      commitTyped(inputTransaction.mSettingsValues,StringUtils.newSingleCodePointString(codePoint));
    }
  }
  final boolean swapWeakSpace=maybeStripSpace(inputTransaction,isFromSuggestionStrip);
  final boolean isInsideDoubleQuoteOrAfterDigit=Constants.CODE_DOUBLE_QUOTE == codePoint && mConnection.isInsideDoubleQuoteOrAfterDigit();
  final boolean needsPrecedingSpace;
  if (SpaceState.PHANTOM != inputTransaction.mSpaceState) {
    needsPrecedingSpace=false;
  }
 else   if (Constants.CODE_DOUBLE_QUOTE == codePoint) {
    needsPrecedingSpace=!isInsideDoubleQuoteOrAfterDigit;
  }
 else {
    needsPrecedingSpace=inputTransaction.mSettingsValues.isUsuallyPrecededBySpace(codePoint);
  }
  if (needsPrecedingSpace) {
    promotePhantomSpace(inputTransaction.mSettingsValues);
  }
  if (ProductionFlag.USES_DEVELOPMENT_ONLY_DIAGNOSTICS) {
    ResearchLogger.latinIME_handleSeparator(codePoint,mWordComposer.isComposingWord());
  }
  if (!shouldAvoidSendingCode) {
    sendKeyCodePoint(inputTransaction.mSettingsValues,codePoint);
  }
  if (Constants.CODE_SPACE == codePoint) {
    if (maybeDoubleSpacePeriod(inputTransaction)) {
      inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
      mSpaceState=SpaceState.DOUBLE;
    }
 else     if (!mSuggestedWords.isPunctuationSuggestions()) {
      mSpaceState=SpaceState.WEAK;
    }
    startDoubleSpacePeriodCountdown(inputTransaction);
    inputTransaction.setRequiresUpdateSuggestions();
  }
 else {
    if (swapWeakSpace) {
      swapSwapperAndSpace(inputTransaction);
      mSpaceState=SpaceState.SWAP_PUNCTUATION;
    }
 else     if ((SpaceState.PHANTOM == inputTransaction.mSpaceState && inputTransaction.mSettingsValues.isUsuallyFollowedBySpace(codePoint)) || (Constants.CODE_DOUBLE_QUOTE == codePoint && isInsideDoubleQuoteOrAfterDigit)) {
      mSpaceState=SpaceState.PHANTOM;
    }
    mSuggestionStripViewAccessor.setNeutralSuggestionStrip();
  }
  inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
  return didAutoCorrect;
}