bookmark mnemonik

Hello. I can't disable numeric bookmark mnemononic, after restart project pycharm.

How repeat:

1. open 2 project in different windows

2. set some marks in second project

3. close second project. After you need to open second project from first project (in another window).

4. I see mark (see first screen), but when I am there are and I press ctrl+F11 pycharm suggested to set new mark (see second screen). I expect that mark will hide.

first screen:

second screen: