$ git clone -n https://src.fedoraproject.org/rpms/kf5-mailimporter.git /var/lib/mock/f40-build-2242226-53669/root/chroot_tmpdir/scmroot/kf5-mailimporter
Cloning into '/var/lib/mock/f40-build-2242226-53669/root/chroot_tmpdir/scmroot/kf5-mailimporter'...
$ git fetch origin 810ac52bfb183277285c9977451660ec27e1502e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-mailimporter
 * [new ref]         810ac52bfb183277285c9977451660ec27e1502e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 810ac52 Rename translation files to avoid conflict with KF6