Split of bug 7813.
About the graph problem, seems to be a permission problem on the server:
[0:1][azatoth@azabox tmp]$ wget
http://bugzilla.wikimedia.org/data/webdot/d8RSx6TUcO.dot.map
--20:14:20-- http://bugzilla.wikimedia.org/data/webdot/d8RSx6TUcO.dot.map
=> `d8RSx6TUcO.dot.map'
Slår upp bugzilla.wikimedia.org... 145.97.39.130, 2001:610:672:1:145:97:39:130
Connecting to bugzilla.wikimedia.org|145.97.39.130|:80... ansluten.
HTTP-begäran skickad, väntar på svar... 403 Forbidden
20:14:20 FEL 403: Forbidden.
Version: unspecified
Severity: enhancement