patch 8.2.1853: "to_f" is recognized at "topleft" modifier Commit: https://github.com/vim/vim/commit/7a66a17190f2f64688a697ea29d58388612122ce Author: Bram Moolenaar <Bram@vim.org> Date: Fri Oct 16 19:56:12 2020 +0200 patch 8.2.1853: "to_f" is recognized at "topleft" modifier Problem: "to_f" is recognized at "topleft" modifier. Solution: Do not recognize modifer when "_" follows. (closes https://github.com/vim/vim/issues/7019)

--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -3123,7 +3123,7 @@ checkforcmd(
     for (i = 0; cmd[i] != NUL; ++i)
 	if (((char_u *)cmd)[i] != (*pp)[i])
 	    break;
-    if (i >= len && !isalpha((*pp)[i]))
+    if (i >= len && !isalpha((*pp)[i]) && (*pp)[i] != '_')
     {
 	*pp = skipwhite(*pp + i);
 	return TRUE;