$ git clone -n https://src.fedoraproject.org/rpms/perl-Maypole.git /var/lib/mock/f41-build-side-1-3127236-39537/root/chroot_tmpdir/scmroot/perl-Maypole
Cloning into '/var/lib/mock/f41-build-side-1-3127236-39537/root/chroot_tmpdir/scmroot/perl-Maypole'...
$ git fetch origin 712d7d2e4e050e0a9dfb73644496578afa6f8a37:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Maypole
 * [new ref]         712d7d2e4e050e0a9dfb73644496578afa6f8a37 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 712d7d2 convert GPL+ or Artistic license to SPDX