patch 8.2.0149: maintaining a Vim9 branch separately is more work Commit: https://github.com/vim/vim/commit/8a7d6542b33e5d2b352262305c3bfdb2d14e1cf8 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jan 26 15:56:19 2020 +0100 patch 8.2.0149: maintaining a Vim9 branch separately is more work Problem: Maintaining a Vim9 branch separately is more work. Solution: Merge the Vim9 script changes.

--- a/src/filepath.c
+++ b/src/filepath.c
@@ -1892,6 +1892,7 @@ f_writefile(typval_T *argvars, typval_T 
 	list = argvars[0].vval.v_list;
 	if (list == NULL)
 	    return;
+	range_list_materialize(list);
 	for (li = list->lv_first; li != NULL; li = li->li_next)
 	    if (tv_get_string_chk(&li->li_tv) == NULL)
 		return;