fix: Only omit group changes messages if SELF is really added (#7220)

If a self-addition message is received, but we're already in the group, there must be no hidden
member changes.

src/receive_imf.rs

@@ -3078,7 +3078,9 @@ async fn apply_group_changes(
     if let Some(removed_id) = removed_id {
         removed_ids.remove(&removed_id);
     }
-    let group_changes_msgs = if self_added {
+    let group_changes_msgs = if !chat_contacts.contains(&ContactId::SELF)
+        && new_chat_contacts.contains(&ContactId::SELF)
+    {
         Vec::new()
     } else {
         group_changes_msgs(context, &added_ids, &removed_ids, chat.id).await?

src/tests/verified_chats.rs

@@ -783,7 +783,12 @@ async fn test_verified_chat_editor_reordering() -> Result<()> {
 
     tcm.section("Charlie receives member added message");
     charlie.recv_msg(&sent_member_added_msg).await;
-
+    charlie
+        .golden_test_chat(
+            charlie_received_xdc.chat_id,
+            "verified_chats_editor_reordering",
+        )
+        .await;
     Ok(())
 }