$ git clone -n https://src.fedoraproject.org/rpms/kubrick.git /var/lib/mock/f43-build-side-115065-61051737-6588211/root/chroot_tmpdir/scmroot/kubrick
Cloning into '/var/lib/mock/f43-build-side-115065-61051737-6588211/root/chroot_tmpdir/scmroot/kubrick'...
$ git fetch origin 766af1bda8b6a241e211b0a228b7ca3f14ca3e77:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kubrick
 * [new ref]         766af1bda8b6a241e211b0a228b7ca3f14ca3e77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 766af1b 25.07.80