$ git clone -n https://src.fedoraproject.org/rpms/perl-autobox-Junctions.git /var/lib/mock/f45-build-27615-625/root/chroot_tmpdir/scmroot/perl-autobox-Junctions
Cloning into '/var/lib/mock/f45-build-27615-625/root/chroot_tmpdir/scmroot/perl-autobox-Junctions'...
$ git fetch origin 265f44db480d6957434ac5e8f7584e32187ba564:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-autobox-Junctions
 * [new ref]         265f44db480d6957434ac5e8f7584e32187ba564 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 265f44d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild