I wanted to find extension GeoCrumbs, but putting the all-lower-case string into a search of all namespaces, produces nothing: https://www.mediawiki.org/w/index.php?title=Special:Search&search=geocrumbs&fulltext=Search&profile=all&redirs=1
(Possibly related to (or duplicate of) bug 54503 ? Possibly filed against the wrong extension? So many questions!)
Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=54937