copy_staging enable (was: New loader_lua.efi causes kernels to hang at boot)

From: Graham Perrin <grahamperrin_at_gmail.com>
Date: Mon, 30 Aug 2021 10:48:56 UTC
On 30/08/2021 10:33, Konstantin Belousov wrote:
> Try to add
> exec="copy_staging enable"
> line to it, does it hide the problem?

When I last tested (19th August), I got the impression that it was 
enabled by default.

<https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=255073#c20>

Correct me, please, if I'm wrong.