$ git clone -n https://src.fedoraproject.org/rpms/perl-Email-Template.git /var/lib/mock/f45-build-23407-597/root/chroot_tmpdir/scmroot/perl-Email-Template
Cloning into '/var/lib/mock/f45-build-23407-597/root/chroot_tmpdir/scmroot/perl-Email-Template'...
$ git fetch origin 659b170eaba09dd444e025323074327259e4c070:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Email-Template
 * [new ref]         659b170eaba09dd444e025323074327259e4c070 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 659b170 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild