Thanks to your reply I know now that the "bug" I am fighting with for so long is actually intended. :-p
This is quite a problem for me. Is there a similar setting on Android - I couldn't find any.
I'm syncing a folder with my most important notes and stuff to my mobile devices, so I'm always able to access them, but I do not want them to make any changes. I'm using Jota for text file, however if I just type a small change into a file, the synchronization breaks - even if I discard the changes. Unfortunately this happens from time to time by accident. I didn't know for a long time that this was causing my sync issues. So I end up being somewhere and when accessing my notes I realize I'm missing the latest information.
Even worse, I didn't even find a way to easily fix the synchronization again. Turning on selective sync, deleting all files, rebooting device, turning off selective sync again, updating the file on a read/write device, ... - still those files will not get synced any longer. So every time this happens I need to disconnect the whole folder, delete everything and sync it again.
Please tell me there is a simpler way to keep it mirrored. Thanks!