$ git clone -n https://github.com/xcp-ng-rpms/ldns.git /var/lib/mock/v8.3-incoming-9963-28628/root/chroot_tmpdir/scmroot/ldns
Cloning into '/var/lib/mock/v8.3-incoming-9963-28628/root/chroot_tmpdir/scmroot/ldns'...
$ git fetch origin 6da1a0c1eaefad3b2f205f674ac30e5b2854c326:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/ldns
 * [new ref]         6da1a0c1eaefad3b2f205f674ac30e5b2854c326 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6da1a0c Add openssl-3 support