Support refreshDueToExternalTransaction in more views

submodules/Postbox/Sources/PostboxView.swift

@@ -5,6 +5,7 @@ public protocol PostboxView {
 
 protocol MutablePostboxView {
     func replay(postbox: PostboxImpl, transaction: PostboxTransaction) -> Bool
+    func refreshDueToExternalTransaction(postbox: PostboxImpl) -> Bool
     func immutableView() -> PostboxView
 }
 
@@ -24,6 +25,16 @@ final class CombinedMutableView {
         }
         return updated
     }
+
+    func refreshDueToExternalTransaction(postbox: PostboxImpl) -> Bool {
+        var updated = false
+        for (_, view) in self.views {
+            if view.refreshDueToExternalTransaction(postbox: postbox) {
+                updated = true
+            }
+        }
+        return updated
+    }
     
     func immutableView() -> CombinedView {
         var result: [PostboxViewKey: PostboxView] = [:]