ROOL Wiki search gives Internal Error

If you click on Documents the search legend changes to:-
“Search the Wiki”
If you now enter an asterisk into the search field,
eg * commands – (or just *)
An Error page is generated:

Internal Error
An Application error occurred while processing your request

This happens on NetSurf and also Safari.

The Wiki Search accepts regular expressions. If you want to search for * it needs to be escaped. \*