Parent mc_ki wasn't adjusted if new_indx was > split point
@ -8419,6 +8419,7 @@ mdb_page_split(MDB_cursor *mc, MDB_val *newkey, MDB_val *newdata, pgno_t newpgno
rp->mp_upper -= ksize - sizeof(indx_t);
mc->mc_ki[mc->mc_top] = x;
mc->mc_pg[mc->mc_top] = rp;
mc->mc_ki[ptop]++;
}
} else {
int psize, nsize, k;