[Qgis-developer] QGIS slow when zooming

[luca_manganelli at comune.trento.it]

Hi, I discovered a problem with QGIS (1.0.2 and 1.1). It's slow when
zooming big vector layers (either in SHP and Postgis format).

Reproduce it with:

1) zoom small region
2) zoom another time

as you can see, QGIS is going to use 100% CPU and remains stuck.

I've attached the shapefile in this URL, so you can test this:
http://webapps.comune.trento.it/base/zone.7z