Fix bug for error case

Author: Roy Ng

Flow-iOS.podspec

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'Flow-iOS'
-  s.version          = '1.0.0'
+  s.version          = '1.0.1'
   s.summary          = 'Make your logic flow and data flow clean and human readable.'
 
 # This description is used to generate tags and improve search results.

Flow/Classes/Flow.swift

@@ -117,6 +117,7 @@ public class Flow {
       break
     case .withError(let error):
       log(message: "\(operation.displayName) DidFinish: withError: \(error)")
+      self.error = error
       stopingCaseHandling(operation: operation)
       break
     case .withInsufficientInputData(let message):