Every time you merge to master, it automatically switches to master.
I think this is very very very dangerous and it should change. By “this” I mean both the fact that master is automatically checked out after the merge and the fact that master is editable.
I got hurt with it already many times. I am getting used to immediately switch back to dev, but this is far from both user and beginner friendly. Not only this is dangerous, it is also useless.