Re: format-patch --cc and send-mail --s-o-b-cc don't play nice together

"Bert Wesarg" [off-list ref] writes:

the --cc option from format-patch adds a Cc: header to the mail where
multiple recipients are put into a new line, separated by commas.

I am not sure if --cc ever made sense to be given to format-patch.  It is
not a tool to send e-mails, which send-email is.

Unfortunately send-mail with the --signed-off-by-cc option can't parse
these lines.

Isn't --signed-off-by-cc a completely unrelated feature, where it gives
carbon copies to people who signed off the patch?  Why does the option
need to read from existing CC: header of the material the command is told
to send out?