window-rules: fix window rules not being applied

In 943f5751, I initialized heap-allocated `view_query` used for
`If` actions with `decoration=LAB_SSD_MODE_INVALID`, but I forgot to do
that for stack-allocated `view_query` used for window rules.

src/view.c

@@ -78,6 +78,7 @@ struct view_query *
 view_query_create(void)
 {
 	struct view_query *query = znew(*query);
+	/* Must be synced with view_matches_criteria() in window-rules.c */
 	query->window_type = -1;
 	query->maximized = VIEW_AXIS_INVALID;
 	query->decoration = LAB_SSD_MODE_INVALID;