SOLR-4729: LukeRequestHandler: Using a dynamic copyField source that is not also a dynamic field triggers error message 'undefined field: "(glob)"' (merged trunk r1470820, r1476491, r1476493, and 1476496)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_3@1476498 13f79535-47bb-0310-9956-ffa450edef68