[Wikipedia-l] How to avoid naming conflicts with commons?

[Marco Krohn]

Hi,

a moment ago I found that the article

  http://en.wikipedia.org/wiki/Panthera

contains a big OS X (tiger) image. First I thought that this is a joke, but 
then I discovered that it seems just to be a mistake, but one I do not know 
how to avoid efficiently.

The Panthera article contains a link to Image:Tiger.jpg which is loaded from 
commons (http://commons.wikimedia.org/wiki/Image:Tiger.jpg). Yesterday user 
WikiED uploaded an image Tiger.jpg with the Mac OS X to _en.wikipedia.org_. 
Loading the article now means that Image:Tiger.jpg now refers to the en: 
version of that image and by that the article now shows a different image (of 
course without showing anything on my watchlist).

As user WikiED probably does not know about commons he probably did not know 
that his upload caused problems in several articles. Is there anything one 
can do about avoiding such problems, e.g. is it possible to force a load from 
commons? Something like commons:Image:Tiger.jpg unfortunately does not seem 
to work. Also in the upload form it would be helpful to get a warning about a 
potential naming conflict.

best regards,
  Marco