Set Ractor moved object's shape to original object's shape

Fixes [Bug #19409]

1 files changed, 3 insertions, 1 deletions

diff --git a/ractor.c b/ractor.c
index f07dd7c8e5..4d47e75a6c 100644
--- a/ractor.c
+++ b/ractor.c
@@ -3504,7 +3504,9 @@ move_enter(VALUE obj, struct obj_traverse_replace_data *data)
         return traverse_skip;
     }
     else {
-        data->replacement = rb_obj_alloc(RBASIC_CLASS(obj));
+        VALUE moved = rb_obj_alloc(RBASIC_CLASS(obj));
+        rb_shape_set_shape(moved, rb_shape_get_shape(obj));
+        data->replacement = moved;
         return traverse_cont;
     }
 }