Unable to login into xwiki while using LDAP authentication together with "xwiki registration"

prerequisities:
user exists in LDAP
xwiki uses LDAP authorization

bug description:
If a user exists in LDAP, log in into xwiki is successfull. If a new user is registered into xwiki throught registration link, user is created in xwiki, but is unable to log in into xwiki. I found this bug in class com.xpn.xwiki.user.impl.LDAP.LDAPAuthServiceImpl. in method protected boolean checkUserPassword(String username, String password, HashMap attributes, XWikiContext context)
throws XWikiException. Fix is easy but I never commited into SVN so I will just try to descripe the fix:

after the condition "if (result && (checkLevel > 0)) {" we need to add "else" with code: notinLDAP = true;

please see attached LDAPAuthServiceImpl.java class at line 356.