Resolve "Fix migration syntax for unique constraints"

Closes #42 (closed)

assigned to @ZugBahnHof

added 1 commit

• 84a5ca47 - Replace incorrect "null" with None

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assigned to @hansegucker and unassigned @ZugBahnHof

marked this merge request as ready

added 6 commits

• 84a5ca47...9fd127ff - 4 commits from branch master
• cf77fec8 - Merge branch 'master' into 42-fix-migration-syntax-for-unique-constraints
• 4d796d2d - Update changelog

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enabled an automatic merge when the pipeline for 4d796d2d succeeds

merged

mentioned in commit d905d808