Bug 1725845: slapi-nis crashes when returning an entry with invalid DN
Bug Description:
On a search on compat tree, slapi-nis prepared the set of entries to return.
It stores the entries into a hashtable, using the normalized DN as a key.
If the entry contains an invalid DN, the key is invalid and triggers
a crash while adding the entry in the hashtable
https://bugzilla.redhat.com/show_bug.cgi?id=1725845