Lowest staff line moves a bit when top line is resized (and vice versa)

[JoyfulGen]

I know this looks like a nitpicky issue but please bear with me!

If you resize a staff vertically, by clicking and dragging the top line or the bottom line, when you release your drag the other line moves a tiny bit. This issue has existed forever, but it never really bothered me because in Salzinnes and Einsie the move is minute, as you can see here:

Screen.Recording.2026-09-23.at.10.21.05.mov

However, MS234 is a lot smaller than those first two manuscripts, so the move is a lot bigger! It makes resizing staves more difficult than it has to be, because when you make the top line perfect, the bottom one moves out of alignment (and vice versa).

Screen.Recording.2026-09-23.at.10.21.41.mov

Would it possible for the top/bottom line to not move when resizing?

[JoyfulGen]

I'll add that the staff also tends to resize vertically when it's resized horizontally. So pulling on either side of it makes it smaller!