Kibana version: 9.0.0

Browser version: Chrome

Original install method (e.g. download page, yum, from source, etc.): Cloud (staging)

Describe the bug:

When attempting to delete a saved query after updating it, an error is thrown.

Steps to reproduce:

1. Create a saved query (or load an existing one)
2. Update the saved query
3. Attempt to delete the saved query

The following error is shown, and the query is not deleted:

Error: Cannot read properties of undefined (reading 'length')

Expected behavior:

The query is deleted with no errors.

Screenshots (if relevant):

Any additional context:

I believe this error stems from the namespaces.length check, so this may have to do with spaces. In my setup, I have multiple spaces, and the user I'm logged in as has only discover - all privileges in all spaces.