Ack. I didn't get the maintainer email though, nor is it visible at https://tracker.debian.org/pkg/mariadb-10.3/news/ Anyway, thanks for solving this!
- Bug#910902: Please test again: my_print_defaults and Ako... Andreas Beckmann
- Bug#910902: Please test again: my_print_defaults an... Otto Kekäläinen
- Bug#910902: Please test again: my_print_default... Andreas Beckmann
- Bug#910902: Please test again: my_print_def... Otto Kekäläinen