Bug in UNDO function for Joplin on Android

First of all, I’d like to thank Joplin for bringing lots of joy!

I’m running a Joplin 1.0.312 on Android pad. And I found a bug.

If you re-enter the editing mode after auto-save, and accidentally input “ctrl+z”, then everything in the note would disappear. It could reappear with a “ctrl+shift+z” unless however, you quit the editing mode in a hurry and re-enter it. Then there seems to be no way out to have your contents back. And this is the lesson I learnt last night lol.

I would reccommand that:
the UNDO function could be more consistent globally whenever the user quits or enters the editing mode;
or be abandoned temporarily when re-entering the editing mode without typing any new word.