Fixed an issue where joinedAt wasn't getting set for legacy groups

Session.xcodeproj/project.pbxproj

@@ -7673,7 +7673,7 @@
 				CLANG_WARN__ARC_BRIDGE_CAST_NONARC = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "iPhone Developer";
-				CURRENT_PROJECT_VERSION = 473;
+				CURRENT_PROJECT_VERSION = 474;
 				ENABLE_BITCODE = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@@ -7751,7 +7751,7 @@
 				CLANG_WARN__ARC_BRIDGE_CAST_NONARC = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "iPhone Distribution";
-				CURRENT_PROJECT_VERSION = 473;
+				CURRENT_PROJECT_VERSION = 474;
 				ENABLE_BITCODE = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_NO_COMMON_BLOCKS = YES;

SessionMessagingKit/LibSession/Config Handling/LibSession+UserGroups.swift

@@ -625,6 +625,7 @@ public extension LibSession {
         _ db: Database,
         groupPublicKey: String,
         name: String,
+        joinedAt: TimeInterval,
         latestKeyPairPublicKey: Data,
         latestKeyPairSecretKey: Data,
         latestKeyPairReceivedTimestamp: TimeInterval,
@@ -680,7 +681,8 @@ public extension LibSession {
                                     role: .admin,
                                     isHidden: false
                                 )
-                            }
+                            },
+                        joinedAt: Int64(joinedAt)
                     )
                 ],
                 in: conf

SessionMessagingKit/Sending & Receiving/Message Handling/MessageReceiver+ClosedGroups.swift

@@ -225,6 +225,7 @@ extension MessageReceiver {
                 db,
                 groupPublicKey: groupPublicKey,
                 name: name,
+                joinedAt: (TimeInterval(formationTimestampMs) / 1000),
                 latestKeyPairPublicKey: Data(encryptionKeyPair.publicKey),
                 latestKeyPairSecretKey: Data(encryptionKeyPair.secretKey),
                 latestKeyPairReceivedTimestamp: receivedTimestamp,

SessionMessagingKit/Sending & Receiving/Message Handling/MessageSender+ClosedGroups.swift

@@ -76,6 +76,7 @@ extension MessageSender {
                     db,
                     groupPublicKey: groupPublicKey,
                     name: name,
+                    joinedAt: formationTimestamp,
                     latestKeyPairPublicKey: Data(encryptionKeyPair.publicKey),
                     latestKeyPairSecretKey: Data(encryptionKeyPair.secretKey),
                     latestKeyPairReceivedTimestamp: latestKeyPairReceivedTimestamp,