$ git clone -n https://src.fedoraproject.org/rpms/perl-Template-Toolkit-Simple.git /var/lib/mock/f45-build-26542-618/root/chroot_tmpdir/scmroot/perl-Template-Toolkit-Simple
Cloning into '/var/lib/mock/f45-build-26542-618/root/chroot_tmpdir/scmroot/perl-Template-Toolkit-Simple'...
$ git fetch origin 14b50df84f692cf0e98457a04a8d051562db68f0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Template-Toolkit-Simple
 * [new ref]         14b50df84f692cf0e98457a04a8d051562db68f0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14b50df Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild