I'm using Moodle 2.6.4+
Searching a wiki using a space causes the two words to come together as one.

I presume the issue is in regard to the param_alphanumext in wiki/search.php?

'$search = optional_param('searchstring', null, PARAM_ALPHANUMEXT);'

I figured out that if I convert spaces to underscores, it works, but I'm not sure how to code that in.