View.zoom & zoom_extents 'bugs'?

[tim]

Weird behaviour from View.zoom & zoom_extents -

If one has the component edit>hide rest of model turned on then using either zoom or zoom_extents does nothing like the doc claims it should - the resultant view has the nominated entity as a tiny dot in the far distance. If however one has hide rest of model off then both routines do what seems sensible - the component is nicely sized in the view.

That seems like maybe it's a bug. I didn't see much discussion of similar issues beyond a 2007 message relating to nested components causing problems. Has anyone else noticed this? Devised a work around?