Editing text leads to crash

3.0 dev. c8fb201 / Windows10

1) Default "Untitled" score
2) Double-clic on "Title" for editing
3) Try to edit middle letters "it"

Result: the highlight does not hold.

You can only delete to add new letters. But:

4) With the cursor to the left, and by using "Del" key: remove first letters "Ti"
5) Escape
6) Undo

Result: crash

- I am rather scrupulous in presenting this kind of issue report. Because I observe that editing is restructured (or perhaps/probably always a work in progress?): https://github.com/musescore/MuseScore/commit/9384654ab7813742b55d0cbb3…
And so, one never knows that if the issues reported and concerning the latest versions of the 3.0 dev. are useful or not.

- There is also problems with frames which not appear on the score - and so, no way to edit/delete them. This is a new regression (there are a few already with frames in the last few months), and so, again, I'm wondering what to report or not, because maybe it's more or less "predictable" at this stage of the 3.0 development?