Merge pull request #172 from ZmagoD/zd_SCI_465

Generate new experiment img after task restored [fixes SCI-465]

app/models/my_module.rb

@@ -117,6 +117,7 @@ class MyModule < ActiveRecord::Base
         raise ActiveRecord::Rollback
       end
     end
+    experiment.delay.generate_workflow_img
     restored
   end