Considering I have no idea what you’re talking about I’ll say it was.
There is a bug with the GrapheneOS keyboard being strangely buggy when backspacing (it gets confused about where the word starts so if you delete the last letter of a word it will instead delete the space just before the word which is annoying as hell) however that bug is definitely not exclusive to Jerboa and only happens with that keyboard so ¯_(ツ)_/¯