(ITS#4698) authz-regexp matches twice on same dse

Full_Name: Adam pordzik Version: 2.3.27 OS: FreeBSD 5-STABLE URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (80.171.35.164)

authz-regexp uid=([^,]+),cn=[^,]+,cn=auth ldap:///dc=example,dc=org??sub?(|(cn=$1)(uid=$1))

Below dc=example,dc=org there is a DSE with same value for uid and cn, which I can't bind to with SASL. Since Authentication against this entry works after its cn-attributes rename (or deletition of same-valued cn) works, as also agianst other found entries, I assueme this is due to twice matching the same entry.