[TacticalMalice]

The mentioned issue has the following statement which makes me wonder whether concurrent use on sync services is supported atm:

> I was going to add tests for "concurrent" access of the same file in phase 2 of these changes. Phase 2 is refactoring the saving process entirely to make it asynchronous and robust to file sync services.

[zaarn]

From my experience, it already works somewhat. Atleast, whenever I overwrote the file in Nextcloud and my desktop pulled the update, it would merge the changes automatically.