#1095 is unrelated. The problem was "introduced" in https://github.com/geany/geany/commit/f31899538d9cf548cecb8dcdd5fc2cb67893d8.... It's 12 years ago and I don't remember what exactly I tried to fix and why today it is rather broken than fixed.
There are good chances that this change fixes the problem here but might raise another problem in some other case. Non-ASCII filenames, Geany, Windows and me are a bad combination :(.
@WhatWhereWhyler could you please try: https://download.geany.org/snapshots/geany-1.38_setup-pr2660.exe (note that this means you will upgrade from 1.36 to 1.37.1 + this fix, if you have plugins installed, you need to upgrade these to 1.37 as well).