Cannot have a secret with the same name in two different namespaces without error in 0.60.0

[flands]

Describe the bug

2019/04/25 08:17:32 aggregator: watch hook stderr: 2019-04-25 08:17:32 test-dump ERROR: test-secret.namespace1.1: <RichStatus BAD error= defines Secret test-secret, which is already defined by test-secret.namespace1.1 hostname=ambassador6f58844fb4-tn9h4 version=0.60.0>

To Reproduce

• Create a secret in namespace1
• Create a secret in namespace2 with the same name as the secret in namespace1
• Run Ambassador without the AMBASSADOR_SINGLE_NAMESPACE env var
• Ensure secret RBAC is configured on Ambassador
• Go to diag page -- see error

Expected behavior

Should work -- no error in previous version (e.g. 0.53.1)

Versions (please complete the following information):

• Ambassador: 0.60.0
• Kubernetes environment kops
• Version 1.11.7

Additional context
Add any other context about the problem here.