import: fix raw git-over-https urls

Importing git repos via https fails with

ERROR: Unable to determine the project type. ERROR: The URL you supplied was not in one of the supported formats. Please consult ERROR: the manual for a list of supported formats, and supply one of those.

I think it worked once, so I am not actually sure what has changed and what might have been the reason. This should fix importing for now, but please review since I am unfamiliar with python.