Attachments are rendered as broken images in view mode on Nextcloud 25

[mejo-]

Attachments are not rendered correctly in view mode on Nextcloud 25.

The reason is that we don't pass a session to the attachment resolver in RichTextReader.vue and thus attachments are fetched via webdav instead of Text API.

Related upstream issue: nextcloud/text#2919

[niklas-englert]

Upstream issue nextcloud/text#2919 was closed five days ago and Nextcloud 26.0.0 dropped yesterday.
But I have noticed that this issue still persists.

@mejo-, any news on how things are progressing?

[mejo-]

@niklas-englert this finally got solved in Collectives with #611 and will be fixed with the upcoming Collectives release.