$ git clone -n https://src.fedoraproject.org/rpms/glab.git /var/lib/mock/f38-build-side-42-init-devel-972099-28902/root/chroot_tmpdir/scmroot/glab
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-972099-28902/root/chroot_tmpdir/scmroot/glab'...
$ git fetch origin 84859b65527b78d34b44d1aee6e805e0d4f9cc1a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/glab
 * [new ref]         84859b65527b78d34b44d1aee6e805e0d4f9cc1a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 84859b6 Update to 1.28.0 - Closes rhbz#2186556