MDEV-28491 Uuid. "UPDATE/DELETE" not working "WHERE id IN (SELECT id FROM ..)"

This is a 10.7 version of the patch.

plugin/type_inet/mysql-test/type_inet/type_inet6.result

@@ -2194,3 +2194,22 @@ SELECT IF(1, '::', a) AS f FROM t1 GROUP BY 'foo' HAVING f != '::1';
 f
 ::
 DROP TABLE t1;
+#
+# MDEV-28491 Uuid. "UPDATE/DELETE" not working "WHERE id IN (SELECT id FROM ..)"
+#
+CREATE TABLE companies (id INET6, name varchar(10));
+INSERT INTO companies (id) values ('00::01');
+CREATE TABLE divisions (company_id INET6);
+INSERT INTO divisions (company_id) values ('00::01');
+SELECT * FROM companies WHERE id IN (SELECT company_id FROM divisions);
+id	name
+::1	NULL
+UPDATE companies SET name = 'value' WHERE id IN (SELECT company_id FROM divisions);
+SELECT * FROM companies;
+id	name
+::1	value
+DELETE FROM companies WHERE id IN (SELECT company_id FROM divisions);
+SELECT * FROM companies;
+id	name
+DROP TABLE divisions;
+DROP TABLE companies;

plugin/type_inet/mysql-test/type_inet/type_inet6.test

@@ -1612,3 +1612,20 @@ SELECT IF(1, '::', a) AS f FROM t1 GROUP BY 'foo' HAVING f != '';
 SELECT IF(1, '::', a) AS f FROM t1 GROUP BY 'foo' HAVING f != '::';
 SELECT IF(1, '::', a) AS f FROM t1 GROUP BY 'foo' HAVING f != '::1';
 DROP TABLE t1;
+
+--echo #
+--echo # MDEV-28491 Uuid. "UPDATE/DELETE" not working "WHERE id IN (SELECT id FROM ..)"
+--echo #
+
+CREATE TABLE companies (id INET6, name varchar(10));
+INSERT INTO companies (id) values ('00::01');
+
+CREATE TABLE divisions (company_id INET6);
+INSERT INTO divisions (company_id) values ('00::01');
+SELECT * FROM companies WHERE id IN (SELECT company_id FROM divisions);
+UPDATE companies SET name = 'value' WHERE id IN (SELECT company_id FROM divisions);
+SELECT * FROM companies;
+DELETE FROM companies WHERE id IN (SELECT company_id FROM divisions);
+SELECT * FROM companies;
+DROP TABLE divisions;
+DROP TABLE companies;

plugin/type_uuid/mysql-test/type_uuid/type_uuid.result

@@ -3152,3 +3152,22 @@ f	var_pop('x')
 Warnings:
 Warning	1292	Truncated incorrect DOUBLE value: 'x'
 Warning	1292	Incorrect uuid value: ''
+#
+# MDEV-28491 Uuid. "UPDATE/DELETE" not working "WHERE id IN (SELECT id FROM ..)"
+#
+CREATE TABLE companies (id uuid, name varchar(10));
+INSERT INTO companies (id) values ('7bc95b06-cc6c-11ec-96c5-0242ac130002');
+CREATE TABLE divisions (company_id uuid);
+INSERT INTO divisions (company_id) values ('7bc95b06-cc6c-11ec-96c5-0242ac130002');
+SELECT * FROM companies WHERE id IN (SELECT company_id FROM divisions);
+id	name
+7bc95b06-cc6c-11ec-96c5-0242ac130002	NULL
+UPDATE companies SET name = 'value' WHERE id IN (SELECT company_id FROM divisions);
+SELECT * FROM companies;
+id	name
+7bc95b06-cc6c-11ec-96c5-0242ac130002	value
+DELETE FROM companies WHERE id IN (SELECT company_id FROM divisions);
+SELECT * FROM companies;
+id	name
+DROP TABLE divisions;
+DROP TABLE companies;

plugin/type_uuid/mysql-test/type_uuid/type_uuid.test

@@ -1652,3 +1652,21 @@ DROP TABLE t1;
 --echo #
 
 SELECT uuid() AS f, var_pop('x') FROM dual HAVING f > '';
+
+
+--echo #
+--echo # MDEV-28491 Uuid. "UPDATE/DELETE" not working "WHERE id IN (SELECT id FROM ..)"
+--echo #
+
+CREATE TABLE companies (id uuid, name varchar(10));
+INSERT INTO companies (id) values ('7bc95b06-cc6c-11ec-96c5-0242ac130002');
+
+CREATE TABLE divisions (company_id uuid);
+INSERT INTO divisions (company_id) values ('7bc95b06-cc6c-11ec-96c5-0242ac130002');
+SELECT * FROM companies WHERE id IN (SELECT company_id FROM divisions);
+UPDATE companies SET name = 'value' WHERE id IN (SELECT company_id FROM divisions);
+SELECT * FROM companies;
+DELETE FROM companies WHERE id IN (SELECT company_id FROM divisions);
+SELECT * FROM companies;
+DROP TABLE divisions;
+DROP TABLE companies;

sql/sql_type_fixedbin.h

@@ -1589,8 +1589,9 @@ class FixedBinTypeBundle
       if (!example)
         return false;
       value_cached= true;
-      null_value= example->val_native_with_conversion_result(current_thd,
-                                                 &m_value, type_handler());
+      null_value_inside= null_value=
+        example->val_native_with_conversion_result(current_thd,
+                                                   &m_value, type_handler());
       return true;
     }
     String* val_str(String *to)