Video Conversions fail with nuxeo-wopi + MongoDB

Video conversions fail to save if you have both `nuxeo-wopi` installed + MongoDB.

I will provide a Docker Compose-based reproduction case. To reproduce:

• Download the zip
• Unzip and open a terminal in the folder
• `docker compose up` and wait for Nuxeo Server to start
• Log in (Nuxeo default creds)
• Create a workspace (default structure template)
• Upload a video
• Note: you may quickly see `org.nuxeo.ecm.core.api.ConcurrentUpdateException` in the logs; I'm not sure this is related...
• Watch the `videoConversion` queue to make sure all conversions are complete

 
Result: Some automatic Video conversions are not present. OOTB there are two automatic conversions (see extension point `automaticVideoConversions`), `MP4 480p` and `WebM 480p`. With `nuxeo-wopi` installed only one of them succeeds. If you have more conversions, still only one will succeed, e.g. if you install `nuxeo-ai-aws` and enable transcribe, there is an additional automatic conversion added (WAV 16K). I.e. there should be 3 automatic conversions in this case, but only 1 succeeds.

If you remove `nuxeo-wopi`, conversions work fine.

There are `org.nuxeo.ecm.core.api.ConcurrentUpdateException` errors in the log but I can't confirm if they are specifically related to this issue. E.g. I tested with H2 instead of MongoDB, I still see `org.nuxeo.ecm.core.api.ConcurrentUpdateException`, but the conversions work ok.

Workarounds:

• Remove nuxeo-wopi
• Override video conversions so that you only have one