$ git clone -n https://src.fedoraproject.org/rpms/imapfilter.git /var/lib/mock/f40-build-2246636-53829/root/chroot_tmpdir/scmroot/imapfilter
Cloning into '/var/lib/mock/f40-build-2246636-53829/root/chroot_tmpdir/scmroot/imapfilter'...
$ git fetch origin d137e20b9edb5560cda117001a2a154e87f01f65:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/imapfilter
 * [new ref]         d137e20b9edb5560cda117001a2a154e87f01f65 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d137e20 [packit] 2.8.2 upstream release