Registered Template caches property metadata when NiFi template changes

1. create a new template in Nifi with some input processors
2. register it in Kylo
3. update the template in NiFi and move the input processor to be a downstream processor, or vice versa
4. save the template again in NiFi
5. go to Kylo and select the template. It will not show the processors correctly and double them up as input and non input