patch 9.0.0634: evaluating "expr" options has more overhead than needed Commit: https://github.com/vim/vim/commit/a4e0b9785e409e9e660171cea76dfcc5fdafad9b Author: Bram Moolenaar <Bram@vim.org> Date: Sat Oct 1 19:43:52 2022 +0100 patch 9.0.0634: evaluating "expr" options has more overhead than needed Problem: Evaluating "expr" options has more overhead than needed. Solution: Use call_simple_func() for 'foldtext', 'includeexpr', 'printexpr', "expr" of 'spellsuggest', 'diffexpr', 'patchexpr', 'balloonexpr', 'formatexpr', 'indentexpr' and 'charconvert'.

--- a/src/map.c
+++ b/src/map.c
@@ -1711,7 +1711,7 @@ eval_map_expr(
     }
 
     // Note: the evaluation may make "mp" invalid.
-    p = eval_to_string(expr, FALSE);
+    p = eval_to_string(expr, FALSE, FALSE);
 
     --textlock;
     --ex_normal_lock;