Help debugging and fixing sync desktop client

I鈥檓 working on an issue that is blocking for us concerning the syncing desktop client.
I鈥檝e posted an issue, [Bug]: Syncing creates conflict file and sync loops indefinitively 路 Issue #6570 路 nextcloud/desktop 路 GitHub and i would like to get some primary help to point out where to debug this.
I鈥檓 already a NextCloud Developer and experienced in C++. I鈥檝e built the debug version (Mac) of the client, but It would be nice and save me time if i can get some help on source/exec to watch during the bug. (The bug is not so easy to reproduce)