$ git clone -n https://src.fedoraproject.org/rpms/gdal.git /var/lib/mock/f42-build-3460592-45515/root/chroot_tmpdir/scmroot/gdal
Cloning into '/var/lib/mock/f42-build-3460592-45515/root/chroot_tmpdir/scmroot/gdal'...
$ git fetch origin db98046d348c0582c0a58c2fe8a95016643e7da4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gdal
 * [new ref]         db98046d348c0582c0a58c2fe8a95016643e7da4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db98046 Enable blosc