$ git clone -n https://src.fedoraproject.org/rpms/perl-String-Formatter.git /var/lib/mock/f45-build-26282-616/root/chroot_tmpdir/scmroot/perl-String-Formatter
Cloning into '/var/lib/mock/f45-build-26282-616/root/chroot_tmpdir/scmroot/perl-String-Formatter'...
$ git fetch origin 7df0a155c0875fa38b60606e392d90fb48f7b80a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-String-Formatter
 * [new ref]         7df0a155c0875fa38b60606e392d90fb48f7b80a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7df0a15 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild