Re: `git patch-id --stable' vs quoted-printable

Eric Wong [off-list ref] writes:

I don't think postfix, SpamAssassin, or dovecot strip that..
...
I would expect the blank context lines in the QP version to have
"=20".  I sent this to test@public-inbox.org using
`git send-email --transfer-encoding=quoted-printable' and it
confirms the blank context lines having "=20" which are missing
in René's messages:
https://try.public-inbox.org/test/20220822165736.23246-1-e@80x24.org/raw

Yeah, that is a mystery.  Unlike format=flawed, I think CTE-QP was
designed to be reversible without information loss.