Don't show error messages before restoration

src/org/thoughtcrime/securesms/loki/protocol/SessionMetaProtocol.kt

@@ -30,6 +30,12 @@ object SessionMetaProtocol {
         return shouldIgnoreMessage
     }
 
+    @JvmStatic
+    fun shouldErrorMessageShow(context: Context, timestamp: Long): Boolean {
+        val restorationTimestamp = TextSecurePreferences.getRestorationTime(context)
+        return timestamp > restorationTimestamp
+    }
+
     @JvmStatic
     fun handleProfileUpdateIfNeeded(context: Context, content: SignalServiceContent) {
         val rawDisplayName = content.senderDisplayName.orNull() ?: return