Circuit display is broken on Tails

With Tor Browser nightly.2022.10.19 (i.e. somewhat newer than 12.0a4), the circuit display is empty in the context of Tails.

I see torbutton@d96a8864 has moved the call to createTorCircuitDisplay from torbutton_init to the message handler for AboutTor:Loaded. In Tails we don't use about:tor so I believe this code is not run by default in our context. If I visit about:tor, then another website, the circuit display works again (I see "Your guard node may not change" 3 times there, though).

Would it be possible to initialize the circuit display in a code path that runs in Tails?

Thanks in advance!

cc @pierov