$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-MySQL.git /var/lib/mock/f41-build-side-1-2939865-35318/root/chroot_tmpdir/scmroot/perl-Crypt-MySQL
Cloning into '/var/lib/mock/f41-build-side-1-2939865-35318/root/chroot_tmpdir/scmroot/perl-Crypt-MySQL'...
$ git fetch origin 179081a540681422e0b314dcf29041968b0f2870:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-MySQL
 * [new ref]         179081a540681422e0b314dcf29041968b0f2870 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 179081a convert GPL+ or Artistic license to SPDX