When the code is not in default repository but in another one , the code browser do not add the "&repo=XXXX" when creating the link to the diff.

Example : the project chamilo on google code uses the repository "chamilo" and not "default"

The link generated for revision 97499a747c is : "http://code.google.com/p/chamilo/source/detail?r=97499a747c7f8556f7d24b44f7e525ba9495be9b" which doesn't exists because the link should have been "http://code.google.com/p/chamilo/source/detail?r=97499a747c7f8556f7d24b44f7e525ba9495be9b&repo=chamilo"

the same goes for direct links of files which looks like

"http://code.google.com/p/chamilo/source/browse/application/weblcms/php/autoloader.class.php?spec=svn97499a747c7f8556f7d24b44f7e525ba9495be9b&r=97499a747c7f8556f7d24b44f7e525ba9495be9b"

instead of

"http://code.google.com/p/chamilo/source/browse/application/weblcms/php/autoloader.class.php?spec=svn97499a747c7f8556f7d24b44f7e525ba9495be9b&r=97499a747c7f8556f7d24b44f7e525ba9495be9b&repo=chamilo"