Default profile being spawned on login instead of selection list

After upgrading from 0.9.1 to 0.10.2, when a user logs in, instead of being presented with the profile list to make a selection, the default profile is immediately spawned. This means if the user actually wanted a different profile, they must stop their server to get back to the selection list. If I revert to 0.9.1, the expected behavior returns.

I assume this is related to 0.10.x upgrading kubespawner from 0.11.1 to 0.14.1, but I’ve been through the kubespawner changelog and can’t identify anything called out that might have altered this behavor, nor can I identify a new configuration setting I should be passing. Am I missing something?