$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-mysqld.git /var/lib/mock/f41-build-side-1-2781908-32532/root/chroot_tmpdir/scmroot/perl-Test-mysqld
Cloning into '/var/lib/mock/f41-build-side-1-2781908-32532/root/chroot_tmpdir/scmroot/perl-Test-mysqld'...
$ git fetch origin 151f8846616d48844e2c486785700c61fe402c97:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-mysqld
 * [new ref]         151f8846616d48844e2c486785700c61fe402c97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 151f884 convert GPL+ or Artistic license to SPDX