c25a187 created the issue

Sync with webdav needs functionality to exactly mirror the local directory with the remote directory. This means that any local files that are not in the remote directory would be deleted and you would end up with an exact 100% copy of the remote directory. The ability to manually exempt files from the local deletion would be necessary as well. This enables version updates to succeed via webdav without the user manually having to remove all old files. This could be accomplished using the same interface but with indicators of what files would be deleted and a checkbox system to exempt them.