plugins exts CHANGE custom cardinality support dropped

Standard YANG stataments expect standard cardinality.
diff --git a/src/schema_compile_node.c b/src/schema_compile_node.c
index a935907..0d2fe6d 100644
--- a/src/schema_compile_node.c
+++ b/src/schema_compile_node.c
@@ -2444,7 +2444,7 @@
 
         if (ctx->ext) {
             /* container matches all data nodes */
-            lysc_ext_substmt(ctx->ext, LY_STMT_CONTAINER, (void **)&list, NULL);
+            lysc_ext_substmt(ctx->ext, LY_STMT_CONTAINER, (void **)&list);
         } else if (node->nodetype == LYS_RPC) {
             list = (struct lysc_node **)&ctx->cur_mod->compiled->rpcs;
         } else if (node->nodetype == LYS_NOTIF) {