Avoid showing pending transactions, when latestBlock is not defined

Trust/Transactions/ViewModels/TransactionCellViewModel.swift

@@ -15,17 +15,18 @@ struct TransactionCellViewModel {
         self.transaction = transaction
         self.chainState = chainState
     }
+
     var confirmations: Int {
         return max(chainState.latestBlock - Int(transaction.blockNumber), 0)
     }
 
-    private var state: TransactionState {
-        if confirmations == 0 {
-            return .pending
-        }
+    var state: TransactionState {
         if transaction.isError {
             return .error
         }
+        if confirmations == 0 && chainState.latestBlock >= transaction.blockNumber {
+            return .pending
+        }
         return .completed
     }