RTEditor/src/main/java/com/onegravity/rteditor/RTOperationManager.java
synchronized void flushOperations(RTEditText editor) {
        Stack<Operation> undoStack = getUndoStack(editor);
        Stack<Operation> redoStack = getRedoStack(editor);
        undoStack.clear();
        redoStack.clear();
    }
synchronized void flushOperations(RTEditText editor) {
        Stack<Operation> undoStack = getUndoStack(editor);
        Stack<Operation> redoStack = getRedoStack(editor);
        undoStack.clear();
        redoStack.clear();
    }
Flush all operations for a specific rich text editor (method unused at the moment)

@param editor This rich text editor's operations will be flushed