Using a <inputbox> within a template transcluded on a page makes all <nowiki> and <math> elements on the page show as a random string of characters. An example can be found on Village pump (technical)#Bug report: search box (remove the <nowiki> around the template call and do a preview).
Version: unspecified
Severity: major
URL: https://en.wikipedia.org/wiki/User:CesarB/Testcases/4785