Sometimes the prompt doesn't accept the value after pressing enter

[eight04]

This often happens when the computer is lagging.

1. In any prompt (e.g. after pressing n to input a task name)
2. Press enter
3. The prompt doesn't accept the text but create a new line. I have to press backspace and press enter again.

I wonder if this is a bug in prompt_toolkit.

[eight04]

prompt-toolkit/python-prompt-toolkit#1894

[eight04]

I also see the bug on KeyBinding. When typing nfoo while the computer is lagging, it doesn't create a new item but typed nfoo into TextArea.