There is a 0.7.1 release upstream which should fix this crash.
- Bug#940724: profanity terminates with Segmentation fault vabalas
- Bug#940724: profanity terminates with Segmentation ... W. Martin Borgert
- Bug#940724: backtrace spam-debian
- Bug#940724: forward 940724 https://github.com/profa... spam-debian
- Bug#940724: Fixed upstream spam-debian