$ git clone -n https://src.fedoraproject.org/rpms/pim-sieve-editor.git /var/lib/mock/f39-build-1920503-42952/root/chroot_tmpdir/scmroot/pim-sieve-editor
Cloning into '/var/lib/mock/f39-build-1920503-42952/root/chroot_tmpdir/scmroot/pim-sieve-editor'...
$ git fetch origin 6e30fe593895dce08c2397fa7a97956d6a4c2e1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pim-sieve-editor
 * [new ref]         6e30fe593895dce08c2397fa7a97956d6a4c2e1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6e30fe5 23.08.3