Leverage EntityUpdate API

• wait for this drupal core issue to be solved

Changes to geek-merlin include:

• Allow it to work with existing users
• no unneccesary update hook
• don't make changed revisionable (for now)
• Correctly name user revision tables
• in install hook, check that it's actually a BaseFieldDefinition when trying to call setRevisionable()

closes #3197068

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• ffd62472 - Leverage EntityUpdate API
• 43f65b79 - Add functional test

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changed the description

marked this merge request as ready

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• e574d58e - Get drupal.org to run the test?

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• d713cee2 - add drupal9 to info.yml

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resolved all threads

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• cc9720af - Fix wrong word in comment

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closed