Did the link to the pull request not prove that I am doing this? Oddly enough, I still have not run into this issue. But maybe I keep using the 64bit image which does not use raspbian packages - it is pure Debian.
Apologies, I misunderstood. And I am only running into this issue on one of my two installations. Due to some corruption I had to reinstall one last Saturday and on that one the problem crops up. The problem does not show on the other installation, which was last reinstalled last September.