$ git clone -n https://src.fedoraproject.org/rpms/perl-Return-MultiLevel.git /var/lib/mock/f45-build-26013-614/root/chroot_tmpdir/scmroot/perl-Return-MultiLevel
Cloning into '/var/lib/mock/f45-build-26013-614/root/chroot_tmpdir/scmroot/perl-Return-MultiLevel'...
$ git fetch origin c28cb730e4edde6ecaf4bf2f38666d035bd44a5a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Return-MultiLevel
 * [new ref]         c28cb730e4edde6ecaf4bf2f38666d035bd44a5a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c28cb73 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild