case match in sasl-regexp (ITS#2791)

[aej@wpi.edu]

Full_Name: Allan E. Johannesen
Version: 2.2.2beta
OS: Linux
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (130.215.27.217)


slapd.conf had a regexp

sasl-regexp uid=(.*),cn=wpi.edu,cn=gssapi,cn=auth
ldap:///ou=people,dc=wpi,dc=edu??one?(uid=$1)

which worked up through 2.1.23, but failed in 2.2.2beta.  Raising the case of
the cn pattern to WPI.EDU resulted in success.

I just submitted issue report 2790 which described a case-matching requirement
of dn's which appears to be with 2.2 and don't know whether that case match
requirement or this case match requirement is a designed change for 2.2 or an
error.