JENA-379 : Fix for property paths (when not otherwise optimized) using same variable for subject and object.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1432285 13f79535-47bb-0310-9956-ffa450edef68
Typo in comment

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1432286 13f79535-47bb-0310-9956-ffa450edef68