Updating a mod installs it twice in the master mod collection

[ArchLeaders]

When updating a mod, it is installed twice in the master mod collection.

Uninstalling the second throws an error (folder not found, because it was uninstalled already); same folder, different listing.

Recreate

• Install a mod
• Install the same mod again (as an update)
• Uninstall both mods (the second will throw an error)