diff --git a/mysql-test/r/subselect_mat_cost.result b/mysql-test/r/subselect_mat_cost.result
index 87b0ca405c0..fd2b6bbb143 100644
--- a/mysql-test/r/subselect_mat_cost.result
+++ b/mysql-test/r/subselect_mat_cost.result
@@ -3895,3 +3895,23 @@ FROM t3 RIGHT JOIN t1 ON t1.pk = t3.f1
 WHERE t3.f3 OR ( 3 ) IN ( SELECT f2 FROM t2 );
 pk
 drop table t1,t2,t3;
+#
+# LP BUG#714999 Second crash in select_describe() with nested subqueries
+#
+CREATE TABLE t1 ( pk int(11)) ;
+INSERT INTO t1 VALUES (29);
+CREATE TABLE t2 ( f1 varchar(1)) ;
+INSERT INTO t2 VALUES ('f'),('d');
+CREATE TABLE t3 ( f2 varchar(1)) ;
+EXPLAIN SELECT f2 FROM t3 WHERE (
+SELECT MAX( pk ) FROM t1
+WHERE EXISTS (
+SELECT DISTINCT f1
+FROM t2
+)
+) IS NULL ;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+2	SUBQUERY	t1	system	NULL	NULL	NULL	NULL	1	
+3	SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using temporary
+drop table t1, t2;
diff --git a/mysql-test/t/subselect_mat_cost.test b/mysql-test/t/subselect_mat_cost.test
index 5631b533155..175dc39284b 100644
--- a/mysql-test/t/subselect_mat_cost.test
+++ b/mysql-test/t/subselect_mat_cost.test
@@ -345,3 +345,25 @@ FROM t3 RIGHT JOIN t1 ON t1.pk = t3.f1
 WHERE t3.f3 OR ( 3 ) IN ( SELECT f2 FROM t2 );
 
 drop table t1,t2,t3;
+
+--echo #
+--echo # LP BUG#714999 Second crash in select_describe() with nested subqueries
+--echo #
+
+CREATE TABLE t1 ( pk int(11)) ;
+INSERT INTO t1 VALUES (29);
+
+CREATE TABLE t2 ( f1 varchar(1)) ;
+INSERT INTO t2 VALUES ('f'),('d');
+
+CREATE TABLE t3 ( f2 varchar(1)) ;
+
+EXPLAIN SELECT f2 FROM t3 WHERE (
+        SELECT MAX( pk ) FROM t1
+        WHERE EXISTS (
+                SELECT DISTINCT f1
+                FROM t2
+        )
+) IS NULL ;
+
+drop table t1, t2;
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 2e460c3d64a..f22934e3053 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -10966,7 +10966,7 @@ remove_eq_conds(THD *thd, COND *cond, Item::cond_result *cond_value)
 	}
       }
     }
-    if (cond->const_item())
+    if (cond->const_item() && !cond->is_expensive())
     {
       *cond_value= eval_const_cond(cond) ? Item::COND_TRUE : Item::COND_FALSE;
       return (COND*) 0;