Duplicates are being created when running new migrations

[CarolineDenis]

Run https://github.com/specify/specify7/pull/7878/changes
See duplicated fields
Also prevents reverting migrations due to duplication, i.e (1060, "Duplicate column name 'Disposition'")

[grantfitzsimmons]

@CarolineDenis Have you run the schema deduplication function that runs each time the container starts again?