Description of problem:
I have a customer that has an issue that network policies are not blocking egress traffic. They have one deployment in which the egress network policy is not applied to new pods, but when the network policies are removed and recreated they work.

Version-Release number of selected component (if applicable):


How reproducible:
100%

Steps to Reproduce:
1. Create Namespace
2. Create NetworkPolicies
3. Create Statefulset.
4. Start a shell in a statefulset Pod and try to bypass the networkpolices, for example:
   'curl https://www.google.nl'.
   Result: you reach the google website

5. Delete Networkpolicies.
6. Create Networkpolices
7. Start a shell in a statefulset Pod and try to bypass the networkpolices, for example:
   'curl https://www.google.nl'.
   Result: you can NOT reach the google website (edited) 

Actual results:
In the first steps (1 to 4) you can access the internet, this is wrong !!!

Expected results:
You should not be able to reach the internet in the first steps above (1 to 4)


Additional info: