If we put links to other languages in a talk page (such as an "User talk", or a "MediaWiki talk", where they can be very useful), they should be added to the sidebar as happens in the corresponding subject namespaces.
Instead of the expected behavior, currently such interwiki links are being converted to normal links.
For a practical example, try previewing the wikicode "[[fr:Test]]" in both pages below:
http://en.wikipedia.org/wiki/Wikipedia:Sandbox?action=edit
http://en.wikipedia.org/wiki/Wikipedia_talk:Sandbox?action=edit
The second one will not work.
Version: unspecified
Severity: normal