Double opened file(s)

Setup:

My project location is on the external SSD disk, let say F:.

The disk is mounted under C:\my_home_dir\projects

Problem:

When I am opening project using C:\my_home_dir\projects location and switching between source/header files, sometimes QtCreator opens the same file (main.cpp) using the second location.

I.e. In the list of opened documents I have the same file opened twice:

C:\my_home_dir\projects\main.cpp

and

F:\main.cpp

If i am saving changes in to the C:\my_home_dir\projects\main.cpp file, the message pops up that the F:\main.cpp file was changed on the disk - this is really annoying and makes the list of opened files longer two times.