Program: 88318
Project: 88318
Buggy source:
private void handleBackspace(){
  if (VOICE_INSTALLED && mVoiceInputHighlighted) {
    mVoiceInput.incrementTextModificationDeleteCount(mVoiceResults.candidates.get(0).toString().length());
    revertVoiceInput();
    return;
  }
  boolean deleteChar=false;
  InputConnection ic=getCurrentInputConnection();
  if (ic == null)   return;
  if (mAfterVoiceInput) {
    if (mVoiceInput.getCursorPos() > 0) {
      int deleteLen=mVoiceInput.getSelectionSpan() > 0 ? mVoiceInput.getSelectionSpan() : 1;
      mVoiceInput.incrementTextModificationDeleteCount(deleteLen);
    }
  }
  if (mPredicting) {
    final int length=mComposing.length();
    if (length > 0) {
      mComposing.delete(length - 1,length);
      mWord.deleteLast();
      ic.setComposingText(mComposing,1);
      if (mComposing.length() == 0) {
        mPredicting=false;
      }
      postUpdateSuggestions();
    }
 else {
      ic.deleteSurroundingText(1,0);
    }
  }
 else {
    deleteChar=true;
  }
  postUpdateShiftKeyState();
  TextEntryState.backspace();
  if (TextEntryState.getState() == TextEntryState.STATE_UNDO_COMMIT) {
    revertLastWord(deleteChar);
    return;
  }
 else   if (mEnteredText != null && sameAsTextBeforeCursor(ic,mEnteredText)) {
    ic.deleteSurroundingText(mEnteredText.length(),0);
  }
 else   if (deleteChar) {
    sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
    if (mDeleteCount > DELETE_ACCELERATE_AT) {
      sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
    }
  }
  mJustRevertedSeparator=null;
}

Fixed version (ground truth):
private void handleBackspace(){
  if (VOICE_INSTALLED && mVoiceInputHighlighted) {
    mVoiceInput.incrementTextModificationDeleteCount(mVoiceResults.candidates.get(0).toString().length());
    revertVoiceInput();
    return;
  }
  boolean deleteChar=false;
  InputConnection ic=getCurrentInputConnection();
  if (ic == null)   return;
  if (mAfterVoiceInput) {
    if (mVoiceInput.getCursorPos() > 0) {
      int deleteLen=mVoiceInput.getSelectionSpan() > 0 ? mVoiceInput.getSelectionSpan() : 1;
      mVoiceInput.incrementTextModificationDeleteCount(deleteLen);
    }
  }
  if (mPredicting) {
    final int length=mComposing.length();
    if (length > 0) {
      mComposing.delete(length - 1,length);
      mWord.deleteLast();
      ic.setComposingText(mComposing,1);
      if (mComposing.length() == 0) {
        mPredicting=false;
      }
      postUpdateSuggestions();
    }
 else {
      ic.deleteSurroundingText(1,0);
    }
  }
 else {
    deleteChar=true;
  }
  postUpdateShiftKeyState();
  TextEntryState.backspace();
  if (TextEntryState.getState() == TextEntryState.STATE_UNDO_COMMIT) {
    revertLastWord(deleteChar);
    return;
  }
 else   if (mEnteredText != null && sameAsTextBeforeCursor(ic,mEnteredText)) {
    ic.deleteSurroundingText(mEnteredText.length(),0);
  }
 else   if (deleteChar) {
    if (mCandidateView != null && mCandidateView.dismissAddToDictionaryHint()) {
      revertLastWord(deleteChar);
    }
 else {
      sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
      if (mDeleteCount > DELETE_ACCELERATE_AT) {
        sendDownUpKeyEvents(KeyEvent.KEYCODE_DEL);
      }
    }
  }
  mJustRevertedSeparator=null;
}