Bug 5427
From Wikipedia
The following is a demonstration of bugzilla:5427. This page must be in the main namespace for the bug to appear.
Here is a wiki-link that makes a red self-link:
[[:{{NAMESPACE}}: {{PAGENAME}}|{{PAGENAME}}]] : Bug 5427
It should be the same as this: [[:{{NAMESPACE}}:{{PAGENAME}}|{{PAGENAME}}]] : Bug 5427
You can get the same effect without the {{NAMESPACE}} variable:
[[::Bug 5427]] : :Bug 5427
[[:: Bug 5427]] : : Bug 5427
[[: Bug 5427]] : Bug 5427
[[ Bug 5427]] : Bug 5427