https://bugs.openldap.org/show_bug.cgi?id=9621
--- Comment #3 from Michael Ströder michael@stroeder.com --- (In reply to Howard Chu from comment #2)
Note that it's a violation of the data model for a multivalued attribute to be missing an EQUALITY matching rule.
Why is that a violation of the data model?
For example I definitely expect it's possible to store multiple values in attribute 'userPKCS12' without any issues via MOD_REPLACE affecting the whole attribute value set.
I don't expect that I can add/remove distinct attribute values though.