Ticket #47834 - Tombstone_to_glue: if parents are also converted to glue, the target entry's DN must be adjusted.
Description: commit 708a56b8d524131362e2d71b7fbc2eb257075e14 breaks
the CI testcase 47808. Undo the change made in op_shared_add (add.c).
https://fedorahosted.org/389/ticket/47834#comment:9
(cherry picked from commit 6d38125d0e848e43788d2b7e4f5b85613b60448c)