Unsaved Indicator gets updated wrongly

[Schlauer-Hax]

When having multiple files with the same name open, tigerjython does not show unsaved files correctly.
For Example:

I edited the last file, tigerjython marks the first file as unsaved.

Whats even more weird is that when i switch to the third tab and edit that file, the second tab gets marked unsaved.

Now when i edit the second file the third tab gets marked unsaved.

I think this issue happens because of some sort of finder that searches based on filename.

This issue occurs on both Mac and Windows.

I looked where it gets set in the code but couldn't find it, but would still like to help with fixing this.