Free the cloned tag of the LO_LIST element.

lib/layout/layfree.c

@@ -760,6 +760,14 @@ lo_ScrapeElement(MWContext *context, LO_Element *element, Bool freeTableOrCellSt
 			break;
 
 
+		case LO_LIST:
+			if (element->lo_list.tag != NULL)
+              {
+                PA_FreeTag(element->lo_list.tag);
+                element->lo_list.tag = NULL;
+              }
+            break;
+
 		case LO_MULTICOLUMN:
 			/* should we do this? */
 		  	if (element->lo_multicolumn.tag != NULL)