Do not fold lookup tables to lowercase

This behavior is undesirable in our case since it prevents users with
uppercase letters in their username from receiving email
3 jobs for master in 4 minutes and 17 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #6861
lint

00:00:59

passed #6862
parser

00:03:11

 
  Deploy
passed #6863
deploy

00:01:05