Disabling 'allow-updates' gsetting doesn't work properly

Tested on GNOME OS development branch from 6th February 2023.

The org.gnome.software GSettings schema includes a boolean allow-updates described thusly (emphasis mine):

If disabled, GNOME Software will hide the updates panel, not perform any automatic updates actions or prompt for upgrades.

If I run:

gsettings set org.gnome.software allow-updates false

Then I would expect the Updates tab to disappear; and if Software is running while this option is selected, I would expect the visible view to change to one of the other two modes.

Instead:

• If Software is running, there's apparently no effect: I can still switch to and from the Updates page
• When Software is restarted, the Updates button is shown on the top bar; clicking it leaves it in the clicked state but does nothing:

I haven't tested whether disabling this flag actually disables automatic updates and upgrade prompts.