Reverting change and fixing a force-cast crash

SessionMessagingKit/Database/Storage+Shared.swift

@@ -36,17 +36,21 @@ extension Storage {
     }
 
     @objc public func getUser() -> Contact? {
+        return getUser(using: nil)
+    }
+    
+    public func getUser(using transaction: YapDatabaseReadTransaction?) -> Contact? {
+        guard let userPublicKey = getUserPublicKey() else { return nil }
         var result: Contact?
         
-        Storage.read { transaction in
-            result = self.getUser(using: transaction)
+        if let transaction = transaction {
+            result = Storage.shared.getContact(with: userPublicKey, using: transaction)
+        }
+        else {
+            Storage.read { transaction in
+                result = Storage.shared.getContact(with: userPublicKey, using: transaction)
+            }
         }
-        
         return result
     }
-    
-    public func getUser(using transaction: Any) -> Contact? {
-        guard let userPublicKey = getUserPublicKey() else { return nil }
-        return Storage.shared.getContact(with: userPublicKey, using: transaction)
-    }
 }

SessionMessagingKit/Storage.swift

@@ -17,7 +17,7 @@ public protocol SessionMessagingKitStorageProtocol {
     func getUserKeyPair() -> ECKeyPair?
     func getUserED25519KeyPair() -> Box.KeyPair?
     func getUser() -> Contact?
-    func getUser(using transaction: Any) -> Contact?
+    func getUser(using transaction: YapDatabaseReadTransaction?) -> Contact?
     func getAllContacts() -> Set<Contact>
     func getAllContacts(with transaction: YapDatabaseReadTransaction) -> Set<Contact>