Spotted in log, the gwtoolsetUploadMediafileJob job is expected to return a boolean apparently.
| job_type | gwtoolsetUploadMediafileJob |
| job_result | [object] (Title: File:CH-NB - Collection Gugelmann - GS-GUGE-129-106.tif) |
| message | Non-boolean result returned by job: gwtoolsetUploadMediafileJob User:Swiss_National_Library/GWToolset/Mediafile_Batch_Job/5b8e6e42243d5 ... |
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