URL:
https://github.com/SSSD/sssd/pull/443
Title: #443: NSS: Use enum_ctx as memory_context in _setnetgrent_set_timeout()
pbrezina commented:
"""
If `enum_ctx` is freed than the timeout is canceled. Ack.
"""
See the full comment at
https://github.com/SSSD/sssd/pull/443#issuecomment-343893828