Content lock 3525430 8.2

In a previous issue, #3381841 it was discussed how it is a problem that when a peice of content is locked, the views arent displaying the "locked by.." text.

This was because the correct caches werent being invalidated.

The conclusion in the issue was to set cache: none, but I feel like this is a mistake.

Instead, in the issue, there was a commit that actually used correct cache invalidation, but for some reason, it was glossed over (?)