in src/android/Capture.java [554:566]
private void checkForDuplicateImage() {
Uri contentStore = whichContentStore();
Cursor cursor = queryImgDB(contentStore);
int currentNumOfImages = cursor.getCount();
// delete the duplicate file if the difference is 2
if ((currentNumOfImages - numPics) == 2) {
cursor.moveToLast();
int id = Integer.valueOf(cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media._ID))) - 1;
Uri uri = Uri.parse(contentStore + "/" + id);
this.cordova.getActivity().getContentResolver().delete(uri, null, null);
}
}