0003821: Model viewer filters apply to the whole editor and cause unexpected results.
Description
Filters applied in the choose model can apply to the editor in general, which does not look like intended behaviour. Filter brushes for instance and the whole map disappears! Same goes of entities etc... when it should be active just for the model.
Steps To Reproduce
Enable a filter in the model viewer and see it apply to the whole editor.
Currently the filter controls in the Model Chooser appear to be doing nothing at all, so I'm repurposing this ticket to cover the current behaviour (since the original issue is either concealed or obsolete).
