SALSA_CI_EXTRA_REPOSITORY_SOURCES is wrongly used if configured via the web UI
As reported by @sur5r on IRC: https://salsa.debian.org/python-team/packages/django-tasks/-/jobs/9164109 didn't really use the repo added via SALSA_CI_EXTRA_REPOSITORY_SOURCES. Symptom at line 595: `cat: /builds/python-team/packages/django-tasks//builds/python-team/packages/django-tasks.tmp/SALSA_CI_EXTRA_REPOSITORY_SOURCES: No such file or directory`
The culprit seems to be at https://salsa.debian.org/salsa-ci-team/pipeline/-/blob/master/salsa-ci.yml#L363, so `/builds/python-team/packages/django-tasks/` is wrongly concatenated to the path, in this kind of cases.
Fixing this requires to make sure that .sources files found in the repository, and set as relative path in `SALSA_CI_EXTRA_REPOSITORY_SOURCES` will continue to work.
issue