Bug#54110: Extra rows returned on JOIN of two tables with join_cache_level 5 to 8

Diff from running attached MTR test case against next-mr-opt-backporting as compared to 6.0-codebase-bugfixing:


--- issue1.result	
2010-05-31 18:41:29.359809796 +0300
+++ issue1.reject	
2010-05-31 18:41:37.476443761 +0300
@@ -51,10 +51,114 @@
 FROM F table1  
 LEFT  JOIN N table2  ON table1 .`col_int_key`  = table2 .`col_int_key`   ;
 col_varchar_1024_latin1_key
-NULL
-NULL
-NULL
-NULL
+m
+m
+m
+m
+p
+p
+p
+p
+now
+now
+now
+now
+TSUNV
+TSUNV
+TSUNV
+TSUNV
+string1
+string1
+string1
+string1
+how
+how
+how
+how
+OYPEN
+OYPEN
+OYPEN
+OYPEN
+q
+q
+q
+q
+d
+d
+d
+d
+tell
+tell
+tell
+tell
+string2
+string2
+string2
+string2
+y
+y
+y
+y
+k
+k
+k
+k
+your
+your
+your
+your
+ok
+ok
+ok
+ok
+like
+like
+like
+like
+UILXF
+UILXF
+UILXF
+UILXF
+my
+my
+my
+my
+VPZDI
+VPZDI
+VPZDI
+VPZDI
+t
+t
+t
+t
 as
+string3
+string3
+string3
+string3
+when
+when
+when
+when
+I
+I
+I
+I
+string4
+string4
+string4
+string4
+string5
+string5
+string5
+string5
+at
+at
+at
+at
+his
+his
+his
+his
 DROP TABLE F;
 DROP TABLE N;

mysqltest: Result length mismatch