Description of the problem:
When deploying a workflow with the same name in two different namespaces, both workflows are deployed with all pods running, but only one of them appears in the UI.

How reproducible: 100%

Steps to reproduce:

1. Deploy Orchestrator with Helm chart 0.2.9

2. Deploy the same workflow in two separate namespaces using the same name.

Expected results: Either both workflows should appear or some sort of error should be logged.