$ git clone -n https://src.fedoraproject.org/rpms/golang-github-elves-elvish.git /var/lib/mock/f41-build-1143964-21146/root/chroot_tmpdir/scmroot/golang-github-elves-elvish
Cloning into '/var/lib/mock/f41-build-1143964-21146/root/chroot_tmpdir/scmroot/golang-github-elves-elvish'...
$ git fetch origin 8ee8f872efbe1aec54a02b9ae83fa65b0ee53004:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-elves-elvish
 * [new ref]         8ee8f872efbe1aec54a02b9ae83fa65b0ee53004 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ee8f87 Orphaned for 6+ weeks