Unify piggy bank events. Does not save a link to the journal (yet)

app/Services/Internal/Destroy/JournalDestroyService.php

@@ -83,6 +83,7 @@ class JournalDestroyService
             $journal->notes()->delete();
 
             // update events
+            // TODO move to repository
             $journal->piggyBankEvents()->update(['transaction_journal_id' => null]);
 
             $journal->delete();

app/Services/Internal/Update/GroupCloneService.php

@@ -105,7 +105,7 @@ class GroupCloneService
         // add note saying "cloned".
 
         // add relation.
-        // clone linked piggy banks
+        // TODO clone ALL linked piggy banks
         /** @var PiggyBankEvent $event */
         $event =  $journal->piggyBankEvents()->first();
         if(null !== $event) {