$ git clone -n https://src.fedoraproject.org/rpms/perl-Shipwright.git /var/lib/mock/f41-build-1146547-21197/root/chroot_tmpdir/scmroot/perl-Shipwright
Cloning into '/var/lib/mock/f41-build-1146547-21197/root/chroot_tmpdir/scmroot/perl-Shipwright'...
$ git fetch origin 5d55b891cf14110634e1bca92eee9542504ff1f1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Shipwright
 * [new ref]         5d55b891cf14110634e1bca92eee9542504ff1f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5d55b89 Eliminate use of obsolete %patchN syntax (#2283636)