@ -6063,7 +6063,9 @@ fix_parent:
if (mc->mc_top && !mc->mc_ki[mc->mc_top]) {
unsigned short top = mc->mc_top;
mc->mc_top--;
/* slot 0 is always an empty key, needs no update */
/* slot 0 is always an empty key, find real slot */
while (mc->mc_top && !mc->mc_ki[mc->mc_top])
if (mc->mc_ki[mc->mc_top])
rc2 = mdb_update_key(mc, key);
else