Sieve Header question.

31 Aug 2019 · *" { set "GHUser" "${1}"; addflag "${GHUser}"; addflag "MyFlags" "${GHuser}"; } if header :matches "List-ID" "(.*


      I'm trying to make my github processing better, but I'm missing something.
I have the following:
if address :all :contains "from" ["github.com"] {
addflag "github";
addflag "MyFlags" "github";
set "mailbox" "GitHub";
if address :matches :user  "to" "*" {
set "GHUser" "${1}";
addflag "${GHUser}";
addflag "MyFlags" "${GHuser}";
}
if header :matches "List-ID" "(.*/.*) <(.*)>" {
set "mailbox" "github-lists/${1}";
}
fileinto :flags "${MyFlags}" :create "${mailbox}";
stop;
}
I'm trying to match the apache-incubator-superset part of:
List-ID: apache/incubator-superset 
What am I missing?
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640 (c)     E-Mail: larryrtx@gmail.com
US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106