$ git clone -n https://src.fedoraproject.org/rpms/kf5-kimap.git /var/lib/mock/f40-build-743652-111339/root/chroot_tmpdir/scmroot/kf5-kimap
Cloning into '/var/lib/mock/f40-build-743652-111339/root/chroot_tmpdir/scmroot/kf5-kimap'...
$ git fetch origin 05d7fa70cfebe7d031d9e4ed10a5a57e762df17e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kimap
 * [new ref]         05d7fa70cfebe7d031d9e4ed10a5a57e762df17e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 05d7fa7 23.08.2