[rt-users] RT 3.6.1 - User's Username cannot be a number?

[Samuel P. Howard]

Hi.

I just stood up RT 3.6.1 (still running 3.4.x everywhere else) and 
decided to try to tie our customers into RT in a different way this 
time.  Each customer has a customer number that they are referenced by 
(i.e. not by "Joe's Auto Shop"), and even though the Postgres DB table 
for "users" says "name character varying(200) NOT NULL", it doesn't seem 
to take just a number for a username (i.e. "1000").

I'm guessing this must be in the RT code somewhere as some strange 
dependency, but I can't find a reference to it yet.

Is this a bug?  Or should it be?  I was able to add a user with the same 
user information and just perpending an "a" in front of "1000".  If I 
try to change the username to just "1000" after the fact, I get a better 
error of "Illegal value for Name" which is a bit more descriptive, but 
not exactly what I want.  :)

Any ideas?

Thanks,
Sam