Persistently dirty registry .... case-insensitive file collision when cloning JuliaRegistries/General from GitHub

General Usage
4

I’m having the same issue on Windows right now:

(@v1.4) pkg> up
   Updating registry at `C:\Users\Jakob\.julia\registries\General`
┌ Warning: Some registries failed to update:
│     — `C:\Users\Jakob\.julia\registries\General` — registry dirty
└ @ Pkg.Types D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.4\Pkg\src\Types.jl:1122
   Updating git-repo `https://github.com/JuliaGraphs/LightGraphs.jl.git`
   Updating `C:\Users\Jakob\.julia\environments\v1.4\Project.toml`
 [no changes]
   Updating `C:\Users\Jakob\.julia\environments\v1.4\Manifest.toml`
 [no changes]

Following this discussion, i removed the .julia\registries folder and ran up, which however did not seem to help as the registry remained dirty.