tabulation and cursor position
I'm not completely sure it's a bug or even it's important. I just submit it to make it know and eventually classified as ok.
If we compare cursor position on tabulation on vim and on yzis.
vim have his cursor on the last column of the tabulation (ie at the end of the tabulation)
yzis have his cursor on the first column of the tabulation (ie the beginning of the tabulation).
maybe it's intended, maybe it doesn't matter, i don't know ^^. I just say it.