$ git clone -n https://src.fedoraproject.org/rpms/imapfilter.git /var/lib/mock/f45-build-14067-456/root/chroot_tmpdir/scmroot/imapfilter
Cloning into '/var/lib/mock/f45-build-14067-456/root/chroot_tmpdir/scmroot/imapfilter'...
$ git fetch origin f16c5157326074e4fdb9f9bd67ad2f716f87eab6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/imapfilter
 * [new ref]         f16c5157326074e4fdb9f9bd67ad2f716f87eab6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f16c515 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild