Different results for $xwiki.checkAccess and $xwiki.hasAccessLevel

When checking access rights for a global user from the global wiki on a document in a virtual wiki, depending on the rights set on the local wiki, checkAccess returns true, while hasAccessLevel returns false.

I didn't inspect this, but my guess is that the latter method switches the context wiki, without updating the username to remember his origin wiki, so it checks the rights for a non-existing local user.