ocm [QA] Tags do not propagate

## Describe the bug

User Alice reads the popup help under tags (?):
Who can view tags?
Everyone who can view the file can view its tags. Likewise, everyone who can edit the file can edit its tags.

User Alice adds tags to communicate with share receivers.
This works for local user, but her tags are not visible to federated users.

## Steps to reproduce

Setup two machines with e.g.

env OCIS_DNSNAME=cat-7rc3-DATE OCIS_VERSION=v7.0.0-rc.3 ./deploy_ocis_bare_metal.sh
env OCIS_DNSNAME=elf-7rc3-DATE OCIS_VERSION=v7.0.0-rc.3 ./deploy_ocis_bare_metal.sh

mutually register the machines in their ocmproviders.json; service ocis restart

Alice uploads an mp4 file and adds tags to the file.
Alice shares it with local user bob and with external user carol with edit permission.

Bob sees the tags. OK
Bob sees the tags only in the details side bar. Not in the main file view. OKish?
Carol does not see any tags. BAD.

Carol appears to have permission to add her own tags. But when doing so, an error "Failed to edit tags" appears.


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## Expected behavior

Carol also sees them.
Or the popup help should say "All local users who can view ... " instead of "Everyone who can view ..."

Carol should be able to even edit tags, when shared with edit permissions.