should not use rb_str_modify(), too

Same as 8247b8edde, should not use rb_str_modify() here.

https://bugs.ruby-lang.org/issues/17343#change-88858

1 files changed, 1 insertions, 1 deletions

diff --git a/ractor.c b/ractor.c
index c895aab980..fcdf5cf14a 100644
--- a/ractor.c
+++ b/ractor.c
@@ -2294,7 +2294,7 @@ obj_traverse_replace_i(VALUE obj, struct obj_traverse_replace_data *data)
       case T_MATCH:
         break;
       case T_STRING:
-        rb_str_modify(obj);
+        rb_str_make_independent(obj);
         break;
 
       case T_OBJECT: