please review: Issue 49122 - filtered roles that use nsrole in the role filter crash the server

[Mark Reynolds]

https://pagure.io/389-ds-base/issue/49122

https://pagure.io/389-ds-base/issue/raw/files/7c7228186b8171c9a2bfb3fa84a...

CI Test:

https://pagure.io/389-ds-base/issue/raw/files/12ca60e5d0ba7c0ea02133c2254...