Code macro display is broken on legacy page when accessing with copy link.

Issue Summary

Code macro display is broken on legacy page when you access that with copy link.
But this issue doesn't happen 100%. It happened 50% of the time during my testing.
You can watch the detail on the record.(2023-08-23 14.36.12.mov)

Steps to Reproduce

1. Insert code brock on legacy page.
2. Select to [Share] > [Copy link].
3. Paste copy link.

Expected Results

You can display the below screen.

Actual Results

You can display the below screen.

Workaround

When reloading page, you can display the properly code brock.