#3314 sp_BlitzCache high percentage of duplicate plans

Fixes #3314

Author: PasswordIsMyPassword

sp_BlitzCache.sql

@@ -1617,7 +1617,7 @@ WITH total_plans AS
 		    COUNT_BIG(qs.query_plan_hash) AS duplicate_plan_hashes
         FROM sys.dm_exec_query_stats qs
         LEFT JOIN sys.dm_exec_procedure_stats ps 
-            ON qs.sql_handle = ps.sql_handle
+            ON qs.plan_handle = ps.plan_handle
         CROSS APPLY sys.dm_exec_plan_attributes(qs.plan_handle) pa
         WHERE pa.attribute = N'dbid'
         AND   qs.query_plan_hash <> 0x0000000000000000