Error accessing a document whose parent is not accessible

When someone access to a document using a path ref, an error is logged if the user has no read permissions to it's parent.
This applies for instance for children of the UserWorkspaces (user's personal Workspace).

10:42:59,614 ERROR [NuxeoCmisService] org.apache.chemistry.opencmis.commons.exceptions.CmisRuntimeException: org.nuxeo.ecm.core.api.DocumentSecurityException: Privilege READ is not granted to Administrator
org.apache.chemistry.opencmis.commons.exceptions.CmisRuntimeException: org.nuxeo.ecm.core.api.DocumentSecurityException: Privilege READ is not granted to Administrator
at org.nuxeo.ecm.core.opencmis.impl.server.NuxeoCmisService.getObjectParentsInternal(NuxeoCmisService.java:1468)
at org.nuxeo.ecm.core.opencmis.impl.server.NuxeoCmisService.getObjectParents(NuxeoCmisService.java:1436)
at org.apache.chemistry.opencmis.commons.impl.server.AbstractCmisService.getObjectInfoIntern(AbstractCmisService.java:1019)
at org.nuxeo.ecm.core.opencmis.impl.server.NuxeoCmisService.getObjectInfo(NuxeoCmisService.java:859)
at org.nuxeo.ecm.core.opencmis.impl.server.NuxeoCmisService.collectObjectInfo(NuxeoCmisService.java:889)
at org.nuxeo.ecm.core.opencmis.impl.server.NuxeoCmisService.getObjectByPath(NuxeoCmisService.java:776)
at org.nuxeo.ecm.core.opencmis.impl.client.NuxeoSession.getObjectByPath(NuxeoSession.java:303)
at org.nuxeo.ecm.core.opencmis.impl.client.NuxeoSession.getObjectByPath(NuxeoSession.java:292)
at org.nuxeo.ecm.core.opencmis.impl.NuxeoSessionTestCase.testUserWorkspace(NuxeoSessionTestCase.java:641)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)