Make sure TemplaceConstants are initialized to avoid NPE during completion
diff --git a/plugins/org.eclipse.sirius.query.legacy/src/org/eclipse/sirius/query/legacy/business/internal/interpreter/AcceleoInterpreter.java b/plugins/org.eclipse.sirius.query.legacy/src/org/eclipse/sirius/query/legacy/business/internal/interpreter/AcceleoInterpreter.java
index a651561..030992c 100644
--- a/plugins/org.eclipse.sirius.query.legacy/src/org/eclipse/sirius/query/legacy/business/internal/interpreter/AcceleoInterpreter.java
+++ b/plugins/org.eclipse.sirius.query.legacy/src/org/eclipse/sirius/query/legacy/business/internal/interpreter/AcceleoInterpreter.java
@@ -114,6 +114,7 @@
      */
     public AcceleoInterpreter() {
         installWorkspaceListener();
+        TemplateConstants.initConstants();
     }
 
     /**