rhcs81 caManualRenewal with original profile modified for empty params.name
creates root CA subject DN

Version-Release number of selected component (if applicable):
Red Hat Enterprise Linux Server release 5.9 (Tikanga)
redhat-ds-base-8.2.11-5.el5dsrv
pki-ca-8.1.5-1.el5pki

How reproducible:
always

Steps to Reproduce:
1.have user directory
2.have CA
3.duplicate profile caDirUserCert
4. modify subjectNameConstraintImpl to add a params:

policyset.set1.1.constraint.class_id=subjectNameConstraintImpl
policyset.set1.1.constraint.name=Subject Name Constraint
policyset.set1.1.constraint.params.pattern=.*
policyset.set1.1.default.class_id=subjectNameDefaultImpl
policyset.set1.1.default.name=Subject Name Default
policyset.set1.1.default.params.name=$request.auth_token.tokenCertSubject$

1. enroll
2. stop CA and modify the custom profile to remove the variable
   policyset.set1.1.default.params.name=
   start CA
3. try to renew
   http://ca1.example.com:9180/ca/ee/ca/profileSelect?profileId=caManualRenewal

Actual results:
a certificate is issued
but the subject DN is unexpected, it is the root CA (!)