$ git clone -n https://src.fedoraproject.org/rpms/perl-Moo.git /var/lib/mock/f45-build-24972-607/root/chroot_tmpdir/scmroot/perl-Moo
Cloning into '/var/lib/mock/f45-build-24972-607/root/chroot_tmpdir/scmroot/perl-Moo'...
$ git fetch origin 8c1bb906805a3575516797a47fd7eec785761cf0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Moo
 * [new ref]         8c1bb906805a3575516797a47fd7eec785761cf0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c1bb90 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild