"Library already set" when changing library location in .gdns

[tastesliketriangle]

Godot version:
v3.2.3.rc.custom_build.400a78005

OS/device including version:
Win 10 x64

Issue description:
I had a .gdnlib that I moved into a different location.
This caused problems in the associated .gdns files, so I clicked load and pointed to the new library location.
But this produced the following warning:
modules\gdnative\nativescript\nativescript.cpp:122 - Library in NativeScript already set. Do nothing.
Trying to clear the path also failed.
It seems create an embedded resource, preventing changing the path.