diff --git a/mysql-test/r/sp.result b/mysql-test/r/sp.result
index 694cf903d35..454ff0b615f 100644
--- a/mysql-test/r/sp.result
+++ b/mysql-test/r/sp.result
@@ -4046,4 +4046,28 @@ boo
 2
 drop procedure bug14643_1|
 drop procedure bug14643_2|
+drop procedure if exists bug14304|
+drop table if exists t3, t4|
+create table t3(a int primary key auto_increment)|
+create table t4(a int primary key auto_increment)|
+create procedure bug14304()
+begin
+insert into t3 set a=null;
+insert into t4 set a=null;
+insert into t4 set a=null;
+insert into t4 set a=null;
+insert into t4 set a=null;
+insert into t4 set a=null;
+insert into t4 select null as a;
+insert into t3 set a=null;
+insert into t3 set a=null;
+select * from t3;
+end|
+call bug14304()|
+a
+1
+2
+3
+drop procedure bug14304|
+drop table t3, t4|
 drop table t1,t2;
diff --git a/mysql-test/t/sp.test b/mysql-test/t/sp.test
index 5bbe9258461..676cc3cda1e 100644
--- a/mysql-test/t/sp.test
+++ b/mysql-test/t/sp.test
@@ -4823,6 +4823,37 @@ call bug14643_2()|
 drop procedure bug14643_1|
 drop procedure bug14643_2|
 
+#
+# BUG#14304: auto_increment field incorrect set in SP
+#
+--disable_warnings
+drop procedure if exists bug14304|
+drop table if exists t3, t4|
+--enable_warnings
+
+create table t3(a int primary key auto_increment)|
+create table t4(a int primary key auto_increment)|
+
+create procedure bug14304()
+begin
+  insert into t3 set a=null;
+  insert into t4 set a=null;
+  insert into t4 set a=null;
+  insert into t4 set a=null;
+  insert into t4 set a=null;
+  insert into t4 set a=null;
+  insert into t4 select null as a;
+  
+  insert into t3 set a=null;
+  insert into t3 set a=null;
+  
+  select * from t3;
+end|
+
+call bug14304()|
+
+drop procedure bug14304|
+drop table t3, t4|
 
 #
 # BUG#NNNN: New bug synopsis
diff --git a/sql/sp_head.cc b/sql/sp_head.cc
index 9b7ce44c14a..81e10e59a9b 100644
--- a/sql/sp_head.cc
+++ b/sql/sp_head.cc
@@ -1069,7 +1069,7 @@ int sp_head::execute(THD *thd)
     }
 
     /* we should cleanup free_list and memroot, used by instruction */
-    thd->free_items();
+    thd->cleanup_after_query();
     free_root(&execute_mem_root, MYF(0));    
 
     /*
diff --git a/sql/sql_class.cc b/sql/sql_class.cc
index 70dfaca53d3..00669ee5c73 100644
--- a/sql/sql_class.cc
+++ b/sql/sql_class.cc
@@ -1948,6 +1948,7 @@ void THD::reset_sub_statement_state(Sub_statement_state *backup,
   backup->last_insert_id=  last_insert_id;
   backup->next_insert_id=  next_insert_id;
   backup->insert_id_used=  insert_id_used;
+  backup->clear_next_insert_id= clear_next_insert_id;
   backup->limit_found_rows= limit_found_rows;
   backup->examined_row_count= examined_row_count;
   backup->sent_row_count=   sent_row_count;
@@ -1999,6 +2000,7 @@ void THD::restore_sub_statement_state(Sub_statement_state *backup)
   last_insert_id=   backup->last_insert_id;
   next_insert_id=   backup->next_insert_id;
   insert_id_used=   backup->insert_id_used;
+  clear_next_insert_id= backup->clear_next_insert_id;
   limit_found_rows= backup->limit_found_rows;
   sent_row_count=   backup->sent_row_count;
   client_capabilities= backup->client_capabilities;
diff --git a/sql/sql_class.h b/sql/sql_class.h
index 33be70ee674..0a5a615fe64 100644
--- a/sql/sql_class.h
+++ b/sql/sql_class.h
@@ -1090,7 +1090,7 @@ public:
   ha_rows    cuted_fields, sent_row_count, examined_row_count;
   ulong client_capabilities;
   uint in_sub_stmt;
-  bool enable_slow_log, insert_id_used;
+  bool enable_slow_log, insert_id_used, clear_next_insert_id;
   my_bool no_send_ok;
   SAVEPOINT *savepoints;
 };