Wikimedia Bugzilla is closed!

When using {{SERVER}}{{localurl:{{NAMESPACE}}:{{PAGENAME}}|action=edit}} as a
link, and the page name contains an ampersand, the generated link does not
escape the ampersand in the page title.

Testcases:

{{localurl:&|action=edit}} gives the expected output of
"/w/index.php?title=%26&action=edit"

{{SERVER}}{{localurl:&|action=edit}} is automatically converted into a
hyperlink (because of the leading http:// generated by {{SERVER}}) and gives the
incorrect output of "http://en.wikipedia.org/w/index.php?title=&&action=edit"