Merge pull request #18353 from eileenmcnaughton/dupe

#1998 Address dedupe clash on dashboard contact

CRM/Dedupe/Merger.php

@@ -541,6 +541,12 @@ INNER JOIN  civicrm_membership membership2 ON membership1.membership_type_id = m
         continue;
       }
 
+      if ($table === 'civicrm_dashboard_contact') {
+        $sqls[] = "UPDATE IGNORE civicrm_dashboard_contact SET contact_id = $mainId WHERE contact_id = $otherId";
+        $sqls[] = "DELETE FROM civicrm_dashboard_contact WHERE contact_id = $otherId";
+        continue;
+      }
+
       if ($table === 'civicrm_dedupe_exception') {
         $sqls[] = "UPDATE IGNORE civicrm_dedupe_exception SET contact_id1 = $mainId WHERE contact_id1 = $otherId";
         $sqls[] = "UPDATE IGNORE civicrm_dedupe_exception SET contact_id2 = $mainId WHERE contact_id2 = $otherId";