How to make config page labels appear correctly upon .properties file change without gateway restart

Whenever I add a new field to a .properties file in the module I’m helping develop, all of the fields suddenly appear like:

Just as an example.
Rebuilding the module doesn’t work. Restarting the module doesn’t work. Uninstalling and reinstalling the module doesn’t work. Only a full gateway restart turns the labels back to normal. How do I get around this problem without having to restart the entire gateway?

C’est la vie.

I think it’s a longstanding bug in Ignition’s BundleUtil. Not sure you’re doing anything wrong.