Length check for Malformed response

[stanley101music]

Which version are you referring to
3.2

I'm currently reviewing the part of checking $tls_serverhello_ascii_len to determine whether it's a Malformed response or not.
The specific lines are #14260~#14264 and #14303~#14306

AFAIK, the code checks the ServerHello message's length while the condition ensures that the message's length must be larger than the minimum size of the ServerHello message structure, i.e., 76 in this case.
However, the comments present that without sid-len, there are at least 40 bytes, and thus I'd expect the threshold of the length check should be 40*2= 80.

I'd like to know why it's 76 instead of 80.