[PATCH 0/1] MR2481: wldap32: Handle null DN or null message in ldap_delete* and add tests.

[Alex Henrie (＠alexhenrie)]

On Windows, ldap_delete_(ext_)s returns LDAP_UNWILLING_TO_PERFORM when
trying to delete an entry that cannot be deleted. On Unix,
LDAP_SERVER_DOWN is returned instead. Unix also returns LDAP_SERVER_DOWN
immediately from ldap_delete_ext if the entry cannot be deleted, whereas
Windows queues an asynchronous operation and returns LDAP_SUCCESS.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54702

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https://gitlab.winehq.org/wine/wine/-/merge_requests/2481