Serverless revisions are not shown reliable in topology graph

Description of problem:

When the user imports a Serverless Service from a container image the KSVC box shows sometimes the message "No revision" instead of an pod status ring.

Prerequisites (if any, like setup, operators/versions):

1. OpenShift Serverless operator (tested with 1.15.0)

Steps to Reproduce

1. Switch to developer perspective
2. Add > Import from container image
3. Import container jerolimov/nodeinfo
4. Watch new deployment in topology graph

Actual results:

1. Pod status ring was not shown. The KSVC shows "No Revision"
2. When selecting the service, it shows the revision in the sidebar.

Expected results:

1. Serverless Service should show the revision reliable if it is available.

Reproducibility (Always/Intermittent/Only Once):

Intermittent

Build Details:

1. Could reproduce this also on 4.6
2. And on 4.9 master (commit 8135af447bd8c3ee188af47abf10665b3bbb3498)

Additional info: