Reset NetworkSegment TTL cache after remove. Affected when batch jobs.
In [2]: ns = NetworkSegment.get_by_id("57eae072b1cbec09ca7e8f98")
In [3]: ns._id_cache
Out[3]: TTLCache([(('57eae072b1cbec09ca7e8f98',), <NetworkSegment: Сегмент доступа №57006-0/0/13 района FTTB Б-Сити-5328-AGG 131-248>)], maxsize=100, currsize=1)
In [4]: ns._reset_caches(ns.id)
In [5]: ns._id_cache
Out[5]: TTLCache([], maxsize=100, currsize=0)