$ git clone -n https://src.fedoraproject.org/rpms/okular.git /var/lib/mock/f42-build-3401444-45130/root/chroot_tmpdir/scmroot/okular
Cloning into '/var/lib/mock/f42-build-3401444-45130/root/chroot_tmpdir/scmroot/okular'...
$ git fetch origin 47dec3958f6b1192871913b12d20c503c67d8c73:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/okular
 * [new ref]         47dec3958f6b1192871913b12d20c503c67d8c73 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47dec39 24.12.3