This seems sporadic, and while it doesn't happen all the time, it does happen a lot, so I hope I am giving enough details to repeat this:
- Put the cursor on an empty line without text.
- Click the "Bold" button.
- Type gibberish fast (ldkjlskdfjlkdjs lskdjf lsdkjflsdkjljsf....)
- Witness weirdness: new characters pop up in the line underneath or in between the bits of gibberish, and if I try "backspace" to erase the lines even weirder stuff happen (like characters popup instead of being deleted, etc.
This doesn't happen when I typed regular language, I suspect, then, that it has to do with the speed of the insertion?
But after a single occurrence of this bug, the behavior of delete/backspace creates further bugs even if I stop typing quickly, or start new lines, etc.