Crashes in duk__handle_oldenv_for_call when using #undef DUK_USE_FUNC_NAME_PROPERTY

[copilotenstar]

#undef DUK_USE_FUNC_NAME_PROPERTY

if (duk_pcompile_lstring(ctx, DUK_COMPILE_EVAL, scriptbuf, size)) == 0) {
    duk_dump_function(ctx);
    size_t sz = 0;
    void* buffer = duk_get_buffer(ctx, -1, &sz);

    duk_load_function(ctx);
    duk_pcall(ctx, 0);
}

D1 duk_api_bytecode.c:676 (duk__load_func): no _Formals in dumped function
D1 duk_api_bytecode.c:680 (duk__load_func): final loaded function: {length/564:0,_Varmap/207:{object/generic 000002EC8DD69EA0},__extensible:true,__compfunc:true,__data:buffer:fixed:4736/1,__lexenv:NULL,__varenv:NULL,__nregs:14,__nargs:0,__data:buffer:fixed:4736/1,__refcount:1,__class:3,__heapptr:000002EC8DCEEF90,__prototype:000002EC8DCEFAE8}
D2 duk_heap_refcount.c:627 (duk__heaphdr_refzero_helper): ms_running=0, heap_thread=000002EC8DCEED20
D2 duk_heap_alloc.c:83 (duk_free_hbuffer): free dynamic buffer 000002EC8DD4B118
D1 duk_js_call.c:2703 (duk_handle_safe_call): duk_handle_safe_call: thr=000002EC8DCEED20, num_stack_args=1, num_stack_rets=1, valstack_top=1, idx_retbase=0, rec_depth=0/1000, entry_act=NULL, entry_valstack_bottom_byteoff=0, entry_call_recursion_depth=0, entry_curr_thread=NULL, entry_thread_state=1
D2 duk_js_call.c:2722 (duk_handle_safe_call): safe_call setjmp catchpoint setup complete
D2 duk_api_stack.c:1183 (duk_insert): duk_insert: to_idx=1, p=000002EC8DD3A1A0, q=000002EC8DD3A1A0, nbytes=0
D1 duk_js_call.c:2051 (duk__handle_call_raw): duk__handle_call_raw: thr=000002EC8DCEED20, idx_func=0, call_flags=0x00000000 (constructor=0), valstack_top=2, idx_func=0, idx_args=2, rec_depth=1/1000, entry_valstack_bottom_byteoff=0, entry_valstack_end_byteoff=7616, entry_call_recursion_depth=1, entry_curr_thread=000002EC8DCEED20, entry_thread_state=2
D2 duk_js_call.c:1116 (duk__coerce_nonstrict_this_binding): this binding: non-strict, undefined/null -> use global object
D2 duk_js_call.c:2086 (duk__handle_call_raw): fast path target resolve
D2 duk_js_call.c:1692 (duk__call_setup_act_not_tailcall): not a tail call, pushing a new activation to callstack, to index 0
D0 duk_error_macros.c:176 (duk_default_fatal_handler): built-in default fatal error handler called: assertion failed: h_lex != NULL (duk_js_call.c:981)

if I #define DUK_USE_FUNC_NAME_PROPERTY it works fine.

Any ideas?