Sync optimisation changes github/dev/moderationclient-changes dev/moderationclient-changes

1 files changed, 6 insertions, 4 deletions

diff --git a/LibMatrix/RoomTypes/GenericRoom.cs b/LibMatrix/RoomTypes/GenericRoom.cs
index 4f6a4e9..4324dc3 100644
--- a/LibMatrix/RoomTypes/GenericRoom.cs
+++ b/LibMatrix/RoomTypes/GenericRoom.cs
@@ -1,6 +1,7 @@
 using System.Collections.Frozen;
 using System.Diagnostics;
 using System.Net.Http.Json;
+using System.Security.Cryptography;
 using System.Text.Json;
 using System.Text.Json.Nodes;
 using System.Text.Json.Serialization;
@@ -211,10 +212,11 @@ public class GenericRoom {
     public async Task<RoomIdResponse> JoinAsync(string[]? homeservers = null, string? reason = null, bool checkIfAlreadyMember = true) {
         if (checkIfAlreadyMember)
             try {
-                _ = await GetCreateEventAsync();
-                return new RoomIdResponse {
-                    RoomId = RoomId
-                };
+                var ser = await GetStateEventOrNullAsync(RoomMemberEventContent.EventId, Homeserver.UserId);
+                if (ser?.TypedContent is RoomMemberEventContent { Membership: "join" })
+                    return new RoomIdResponse {
+                        RoomId = RoomId
+                    };
             }
             catch { } //ignore