Description of problem:

It is possible to trigger a warning message in the "starting server" modal of RHODS by clicking on `Cancel` during a spawn attempt and trying again to spawn with the same parameters soon after.
The warning can disappear by itself after a few seconds (seems to be the case when reproducing manually) or can stick around indefinitely (seems to be the case when triggered during automated test runs).

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

RHODS 1.20

Steps to Reproduce

1. Start spawn attempt
2. Wait for `Oauth proxy container started` to appear above the loading bar
3. Click `Cancel`
4. Start another spawn attempt right after

Actual results:

After a few seconds a warning message titled "Killing" and with description "Stopping container oauth-proxy" appears; the message can either disappear by itself or stick around indefinitely (10m+ at least)

Expected results:

No warning message shown, attempt at spawning server is successful

Reproducibility (Always/Intermittent/Only Once):

Always manually, intermittent in automation

Build Details:

RHODS 1.20

Workaround:

If the warning does not disappear, clicking on `Cancel`, waiting a few seconds and clicking on `Start server` again should fix the issue.

Additional info:

Additional discussion where issue is confirmed by multiple people: https://coreos.slack.com/archives/C03UA0RLSQM/p1671185956162109