Crash opening score if text line is anchored to a multi-measure rest
- score with some rests
- create a text line that spans them
- Style -> General -> create multi-measure rests
Crash due to unprotected access to
This can be avoided by checking for NULL
sys in this function (I'll try to submit this fix).
There is a follow-on bug which is that the text line will not display if one of its ends is in a multi-measure rest, but you can only get there if this crash is fixed.