Crash while editing header

I had a Musescore 2.0 score that I opened in 3.0.2. It asked me if I wanted to rearrange objects like it does with every score. I then noticed that in the header the Composer and Lyricist were both top of each other in the upper left of the score. I went to edit the header, deleted the two fields, and used the Edit Element to try to add Composer and Lyricist. After I added Composer, I saw the edit of box the header move a little, but did not see the composer. I flipped to another app briefly, and Musescore crashed. I have attached the macOS crash dump. I then restarted my computer, and tried to reopen the file. It asked if I wanted to restore the session, and I said yes. It then asked the usual 2.0 to 3.0 rearrange question, said yes and Musescore immediately crashes. I tried this without restoring the previous session, same result. I tried it also without rearranging the elements, and still crashes. Therefore, my source file now crashes Musescore every time.

macOS 10.14.3
Musescore 3.0.2.20666
Score and crash dump attached.