ref: 1ad43a57149dcb71f3cfde6f74c776a454fcbeae dir: /bugs-fixed/concat-assign-same.awk/
BEGIN { print (a = 1) (a = 2) (a = 3) (a = 4) (a = 5); print (a = 1), (a = 2), (a = 3), (a = 4), (a = 5); }