Schematic: Don't crash on add symbol when creating text
I added a check + user dialog to prevent the crash. This needs to go in 6.0 as well and cherry-picked cleanly for me.
Fixes: #11891 (closed)
I added a check + user dialog to prevent the crash. This needs to go in 6.0 as well and cherry-picked cleanly for me.
Fixes: #11891 (closed)