$ git clone -n https://src.fedoraproject.org/rpms/kf5-libksieve.git /var/lib/mock/f39-build-2267535-54702/root/chroot_tmpdir/scmroot/kf5-libksieve
Cloning into '/var/lib/mock/f39-build-2267535-54702/root/chroot_tmpdir/scmroot/kf5-libksieve'...
$ git fetch origin c0657693b226ae97aba2acc7f9e7357d6f2b4c33:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-libksieve
 * [new ref]         c0657693b226ae97aba2acc7f9e7357d6f2b4c33 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c065769 23.08.4