tree 3e192dbc80a87029520a946f63be6d999aa7de90
parent 04b0e495de3442a5cf5c110664f718d7b50ce9c7
author Antonio Barone <syntonyze@gmail.com> 1618496367 +0200
committer Antonio Barone <syntonyze@gmail.com> 1618821468 +0000

Add step to check for collisions to magic refs

Importing a repository from github, containing refs starting with the
magic ref prefix (refs/for or refs/meta) will lead to errors where
any push to that repository would fail with:

fatal: One or more refs/for/ names blocks change upload

Prevent repositories containing refs starting with refs/for or refs/meta
from being imported and provide a meaningful error message to the user
so that they can fix the issue and try again.

Bug: Issue 14059
Change-Id: I812e77624a6c7663d6efdec0694fef37b8b8ee4b