Prevent global replace before search is done.

Also fix focusing issues of the replace line edit.

Reviewed-by: Roberto Raggi

src/plugins/cpptools/cppfindreferences.cpp

@@ -350,6 +350,7 @@ void CppFindReferences::displayResult(int index)
 
 void CppFindReferences::searchFinished()
 {
+    _resultWindow->finishSearch();
     emit changed();
 }