Impossible to get disable of the production bundle

I did not find an easy way to disable the production bundle.

I want to disable it because I am using different themes for different URLs (I am using ploneintranet.themeswitcher).

As far as I undersood, even if I disable it in manifest.cfg, this line forces it to appear.

I know my use case is particular.
Before filing a ticket on github, I would like to know from other developers:

  • if there is something I am missing to get what I want
  • if somebody else got stuck with this issue
  • if somebody else thinks this should be fixed

P.s.: as a temporary workaround I am using a viewlet, registered for my theme, layer that overrides the styles method of the StylesView.