[MRM-1232] Unable to get artifacts from repositories which requires Repository Manager role using repository group o if at least one unauthorizeddavexception exists in the compiled errors from the repositories in the group, send back a 401 error to force maven to send attach credentials to the request o added tests
archiva/trunk/archiva-modules/archiva-web/archiva-webdav/src/main/java/org/apache/maven/archiva/webdav/ArchivaDavResourceFactory.java