$ git clone -n https://src.fedoraproject.org/rpms/openldap.git /var/lib/mock/f39-build-1590025-38243/root/chroot_tmpdir/scmroot/openldap
Cloning into '/var/lib/mock/f39-build-1590025-38243/root/chroot_tmpdir/scmroot/openldap'...
$ git fetch origin d0559e0c05c9ff027aa6cef536b3d6ae3246a21d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openldap
 * [new ref]         d0559e0c05c9ff027aa6cef536b3d6ae3246a21d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d0559e0 Rebase to version 2.6.6