Various bug fixes

MatrixSDK/Background/MXBackgroundPushRulesManager.swift

@@ -42,7 +42,9 @@ import Foundation
                 }
             }
 
-            flatRules = tmpRules
+            // vector-im/element-ios/issues/7636
+            // Intentionally disable new backend push rules as they're not handle properly and break notification sounds
+            flatRules = tmpRules.filter { $0.ruleId != ".m.rule.is_user_mention" && $0.ruleId != ".m.rule.is_room_mention" }
         }
     }
     private var flatRules: [MXPushRule] = []
@@ -129,7 +131,9 @@ import Foundation
             var conditionsOk: Bool = true
             var runEquivalent: Bool = false
 
-            guard let kind = MXPushRuleKind(identifier: rule.kind) else { continue }
+            guard let kind = MXPushRuleKind(identifier: rule.kind) else {
+                continue
+            }
 
             switch kind {
             case .override, .underride:

MatrixSDK/Data/Store/MXFileStore/MXFileStore.m

@@ -2209,7 +2209,23 @@ - (void)saveReceipts
 
                         // Store new data
                         [self checkFolderExistenceForRoom:roomId forBackup:NO];
-                        [NSKeyedArchiver archiveRootObject:receiptsStore toFile:file];
+
+                        NSError *error = nil;
+                        NSData *result = [NSKeyedArchiver archivedDataWithRootObject:receiptsStore requiringSecureCoding:false error:&error];
+
+                        if (error != nil)
+                        {
+                            MXLogErrorDetails(@"Failed archiving receipts store", error);
+                            continue;
+                        }
+
+                        [result writeToURL:[NSURL fileURLWithPath:file] options: NSDataWritingAtomic error: &error];
+
+                        if (error != nil)
+                        {
+                            MXLogErrorDetails(@"Failed writing receipts store to file", error);
+                            continue;
+                        }
                     }
                 }
             }

MatrixSDK/Space/MXSpace.swift

@@ -346,7 +346,11 @@ public class MXSpace: NSObject {
     ///
     /// - Returns: the mimnimum power level required to add a room to this space
     public func minimumPowerLevelForAddingRoom(with powerLevels: MXRoomPowerLevels) -> Int {
-        return powerLevels.events["m.space.child"] as? Int ?? powerLevels.stateDefault
+        guard let events = powerLevels.events else {
+            return powerLevels.stateDefault
+        }
+
+        return events["m.space.child"] as? Int ?? powerLevels.stateDefault
     }
 
     // MARK: - Private

changelog.d/1810.bugfix

@@ -0,0 +1 @@
+Prevent keyed archiver encoding crashes when writing read receipts to the file store

changelog.d/7636.bugfix

@@ -0,0 +1 @@
+Fix incoming push notifications not triggering sounds

changelog.d/pr-1809.bugfix

@@ -0,0 +1 @@
+Fixes power level events force unwrap crash