git-url: remove '^0' from tag

git-url

@@ -14,6 +14,8 @@ local_branch = oneliner('git', 'name-rev', '--name-only', 'HEAD')
 tag = None
 if local_branch.startswith('tags/'):
 	tag = local_branch[5:]
+	if tag.endswith('^0'):
+		tag = tag[:-2]
 	remote_url = oneliner('git', 'config', 'remote.origin.url')
 else:
 	tracking_branch = oneliner('git', 'config', 'branch.%s.merge' % local_branch)