patch 8.2.4526: Vim9: cannot set variables to a null value Commit: https://github.com/vim/vim/commit/8acb9cc6209768ca7ec75c9f7af8c389312ea8d6 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Mar 8 13:18:55 2022 +0000 patch 8.2.4526: Vim9: cannot set variables to a null value Problem: Vim9: cannot set variables to a null value. Solution: Add null_list, null_job, etc.

--- a/src/evalvars.c
+++ b/src/evalvars.c
@@ -999,6 +999,11 @@ ex_let_vars(
     listitem_T	*item;
     typval_T	ltv;
 
+    if (tv->v_type == VAR_VOID)
+    {
+	emsg(_(e_cannot_use_void_value));
+	return FAIL;
+    }
     if (*arg != '[')
     {
 	// ":let var = expr" or ":for var in list"