Can't remove bookmark after file rename

I created a bookmark in a file with filename somefile.cpp
Afterwards I renamed the file to SomeFile.cpp (Just changing the case to CamelCase).
Now I am unable to remove the bookmark using the Shortcut keys (CTRL + M).

The editor still shows the bookmark icon if I open the file, and it can still jump to it. 
When I press CTRL+M on the same line, a new bookmark is made and I can see the 2 icons on top of each other. If I press CTRL+M again the new bookmark gets removed. If there are 2 on the same line (old and new one) I can jump between them as if they are 2 separate bookmarks (also seen as 2 separate bookmarks in the navigation widget).

I am on Windows (Case Insensitive file system) which might be the reason for this. The file system treats it as the same file, but Qt Creator treats it as 2 different files.