fix: delete messages on group delete (after leaveMsg sent)

ts/session/conversations/ConversationController.ts

@@ -293,9 +293,10 @@ class ConvoController {
         // this is caught and is adding an interaction notification message
         throw new Error('Failed to send our leaving message to 03 group');
       }
+    }
+
     // now that we know we've sent the leave message, delete any remaining messages
     await this.deleteConvoInitialChecks(groupPk, 'Group', false);
-    }
 
     // a group 03 can be removed fully or kept empty as kicked.
     // when it was pendingInvite, we delete it fully,
@@ -330,6 +331,15 @@ class ConvoController {
         }
       }
     } else {
+      // Let's check if we still have a MetaGroupWrapper for this group. If we don't we won't be able to do anything..
+      let metaGroupWrapperExists = false;
+      try {
+        await MetaGroupWrapperActions.infoGet(groupPk);
+        metaGroupWrapperExists = true;
+      } catch {
+        window.log.warn(`deleteGroup: MetaGroupWrapperActions for ${groupPk} does not exist.`);
+      }
+      if (metaGroupWrapperExists) {
         try {
           const us = UserUtils.getOurPubKeyStrFromCache();
           const allMembers = await MetaGroupWrapperActions.memberGetAll(groupPk);
@@ -374,6 +384,7 @@ class ConvoController {
           );
           throw e;
         }
+      }
 
       // this deletes the secretKey if we had it. If we need it for something, it has to be done before this call.
       await UserGroupsWrapperActions.eraseGroup(groupPk);