Resolve "move_dates_for_testing throws misleading errors"

Closes #33 (closed)

added part::backend prio::1 source::customer labels

assigned to @hansegucker

marked this merge request as ready

added 2 commits

• 24d8fb2e - Fix error handling and messages in move_dates_for_testing
• f4e7efcf - Update changelog

Compare with previous version

assigned to @nik and unassigned @hansegucker

merged

mentioned in commit 2715d0b7