patch 8.2.3446: not enough tests for empty string arguments Commit: https://github.com/vim/vim/commit/820d5525cae707f39571c6abc2aa6a9e66ed171e Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Fri Sep 17 21:07:35 2021 +0200 patch 8.2.3446: not enough tests for empty string arguments Problem: Not enough tests for empty string arguments. Solution: Add tests, fix type check. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/8881)

--- a/src/sign.c
+++ b/src/sign.c
@@ -2282,11 +2282,7 @@ f_sign_getdefined(typval_T *argvars, typ
 	return;
 
     if (argvars[0].v_type != VAR_UNKNOWN)
-    {
-	if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)
-	    return;
 	name = tv_get_string(&argvars[0]);
-    }
 
     sign_getlist(name, rettv->vval.v_list);
 }