Change in allowplaintext behaviour in 2.3.9?

[Nels Lindquist]

Hi there.

I understand that the default for "allowplaintext" is now off in 2.3.9,
which seems like a perfectly fine change.

However, I'm also noticing a behavioural change when allowplaintext is
enabled.

With 2.3.8 and "allowplaintext" on, PLAIN and LOGIN methods were only
explicitly offered when a secure connection was present.  I've upgraded
to 2.3.9 (via Simon's RPM) and now "AUTH=PLAIN AUTH=LOGIN" are
immediately offered even when no TLS/SSL encryption is enabled.

Was this an intentional change?

Nels Lindquist