fix meeting import with migration index prior to 55

OpenSlides / openslides-backend

Backend service for OpenSlides 4+

MIT License

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fix meeting import with migration index prior to 55 #2706

Closed hjanott closed 1 week ago

hjanott commented 2 weeks ago

If importing an exported meeting with migration index 54 or lower, the backend throws an error: Field meta_deleted is reserved Currently the migration gets all mediafiles from the migration reader with the meta_deleted attribute which is then used to create a new meeting_mediafile. This error should be prevented.