Change of style for a type that occurs in source and target schema is applied for all occurrences

[JohannaOtt]

When changing the style of a type that occurs in both, source and target schema, the style is changed for both occurrences.
Sometimes, the same schema is used as source and target when only wanting to change some data or do data validation. When changing the style for one of the types in one of the schemas in such cases in order to check its appearance on the map, the style is changed for the other schema

[github-actions]

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