Hello Bastian,
Please fix the piuparts issue in
https://salsa.debian.org/debian/workflow/-/jobs/2904048
Please read https://www.debian.org/doc/debian-policy/ch-relationships.html for that.
I really don't know how to fix this. I read the documentation. The piuparts issue is that the libworkflow1 package (which now no longer exists) has a conflict over libworkflow.a. There was an error in the way the package was structured and libworkflow1 should have never provided libworkflow.a (it should only be in -dev).
I tried to submit a control file change to say that libworkflo0 replaced libworkflow1 but the error prevents this replacement from being effective.
I don't know how to specify that piuparts should remove libworkflow1/libworkflow-dev and re-install this new version of the package. That's essentially what I want to do.