Debug

Session/Signal/OWSConversationSettingsViewController.m

@@ -896,9 +896,17 @@ static CGRect oldframe;
 
 - (void)didTapLeaveGroup
 {
+    NSString *userPublicKey = OWSIdentityManager.sharedManager.identityKeyPair.hexEncodedPublicKey;
+    NSString *message;
+    if ([((TSGroupThread *)self.thread).groupModel.groupAdminIds containsObject:userPublicKey]) {
+        message = @"Because you are the creator of this group it will be deleted for everyone. This cannot be undone.";
+    } else {
+        message = NSLocalizedString(@"CONFIRM_LEAVE_GROUP_DESCRIPTION", @"Alert body");
+    }
+    
     UIAlertController *alert =
         [UIAlertController alertControllerWithTitle:NSLocalizedString(@"CONFIRM_LEAVE_GROUP_TITLE", @"Alert title")
-                                            message:NSLocalizedString(@"CONFIRM_LEAVE_GROUP_DESCRIPTION", @"Alert body")
+                                            message:message
                                      preferredStyle:UIAlertControllerStyleAlert];
 
     UIAlertAction *leaveAction = [UIAlertAction

Session/View Controllers/EditClosedGroupVC.swift

@@ -253,7 +253,7 @@ final class EditClosedGroupVC : BaseVC, UITableViewDataSource, UITableViewDelega
             return popToConversationVC(self)
         }
         if !members.contains(getUserHexEncodedPublicKey()) {
-            guard members.intersection(Set(thread.groupModel.groupMemberIds).subtracting([ getUserHexEncodedPublicKey() ])) == members else {
+            guard Set(thread.groupModel.groupMemberIds).subtracting([ getUserHexEncodedPublicKey() ]) == members else {
                 return showError(title: "Couldn't Update Group", message: "Can't leave while adding or removing other members.")
             }
         }

Session/View Controllers/HomeVC.swift

@@ -426,13 +426,13 @@ final class HomeVC : BaseVC, UITableViewDataSource, UITableViewDelegate, UIScrol
                         let groupPublicKey = LKGroupUtilities.getDecodedGroupID(groupID)
                         do {
                             try MessageSender.leaveV2(groupPublicKey, using: transaction)
+                        } catch {
+                            // TODO: Handle
+                        }
                         Storage.write { transaction in
                             thread.removeAllThreadInteractions(with: transaction)
                             thread.remove(with: transaction)
                         }
-                        } catch {
-                            // TODO: Handle
-                        }
                     } else {
                         thread.removeAllThreadInteractions(with: transaction)
                         thread.remove(with: transaction)