Key signature accidentals missing with anacrousis + TAB

Hello,

I noticed that when you write on a score + TAB (eg a guitar), the key signature is not taken into account if there is an anacrousis.

In the attached score, you can see that in the first bar, the F should actually be a #F although. I can increase the note of one semi-tone, but there will be a # in front of the F, which is nonsense since the key signature is 1#. If I write a F in another bar, there is no problem. It happens only on first bar because of the anacrousis associated with the score + tab staves.

Please confirm it is a bug (and that will be fixed someday).

creal.

EDIT: sorry, the bug seems to have gone since I restarted MuseScore. Please note that I succeeded to reproduce it with new scores.