Documentation for parameter xwiki.defaultpage does not match behavior

The configuration says :

#-# The name of the default page of a space. This is displayed when the URL specifies a space, but not a document, or neither.

While this parameters actually permits to not write the document name part of a URL when it matches this parameter. Example, if set to "WebHome", URL of space home pages will be serialized without the name part (i.e. "/Sandbox/" and not "/Sandbox/WebHome").

In addition, there is a bug/mistake associated to this behavior, is that the default value taken for this parameter in XWiki.java#getDefaultPage is "Main" and not "WebHome". This explain why when not configured specifically, XE actually writes the WebHome page of URLs.