Mishandling of auxiliary resource uris

[damooo]

trafficstars

Currently NSS reserves .acl for acl resources, and it correctly rejects put requests to it, when there is no subject resource.

But when one do a put request like a/b/c.acl/d/e.txt, it returns success and creates intermediate container a/b/c.acl/, which will be conflict. And then after when one do get over a/b/ it doesn't list that created c.acl/ container, as it treats it as acl resource.

Also may be related: https://github.com/CommunitySolidServer/CommunitySolidServer/issues/1283