Last modified: 2012-07-31 08:27:35 UTC
When a template uses the fullurl magic word and the argument includes a template's parameter, a Template:Fullurl: is shown among used templates when editing the template. You can see a live example in http://it.cathopedia.org/w/index.php?title=Template:Provafullurl&action=edit
As far as I can remember It didn't happen in 1.16. Possibly the bug refers to all magic words
*** This bug has been marked as a duplicate of bug 31576 ***