WebDAV Co-authoring in Office

[Eli35A]

Hey, I have already fully setup a node server using this library, I am wondering how to make co-authoring work properly with Office files locally. (If even possible)

setLock saves a shared lock in DB for each connection and both users are able to open the same file and edit it. (unlike when the exclusive lock is set, that pops up an office modal that says that someone is currently working on the file)

How to recreate
User1 opens FileA in WebDav
User2 opens FileA in WebDav
User1 edits FileA and saves (which updates through WebDav)
User2 edits FileA and saves (which updates through WebDav)

Expected behavior
User 2 should be able to refresh the file contents after user 1 saves a new copy and automatically merge the changes. (expected office behavior)

Actual behaviour
The changes that User2 made overwrites the changes that User1 made.

[periyasamy2git]

I'm also checked that's not possible

[Fernando-Magnabosco]

yes