silenceForm.strip.labels doesn't strip labels that are in the filter bar

[heapdavid]

Hi,

We have set as part of our config:

filters:
  default:
    - 'team!=commercial'
...
silenceForm:
  strip:
    labels:
      - team

So we don't see long-running alerts for our commercial team.

But every time we go to make a new silence (from the main bell on the top right, not the top of an alert) we have to remove/edit a label entry for team:

We'd expect this label to be stripped from the new silence form by the config.