(Backport) If duplicate contact (based on their push params) exist they are removed from DB (at biding for internalDB, filtered at fetching with Redis). Tests with internalDB and Redis. (only on 2.1, see 3be2ef09)
(Backport) If duplicate contact (based on their push params) exist they are removed from DB (at biding for internalDB, filtered at fetching with Redis). Tests with internalDB and Redis. (only on 2.1, see 3be2ef09)