Map wiped after death, after killing the boss

Bug Report ID: #3047762659

The map was cleared of monsters after defating the boss.

I cleared the Deserted map anti-clockwise and killed the boss on the way past - once i got to the very last rare i died to it and when i respawed (at the boss checkpoint) the map fog was reset and the map said '0 monsters remain'.

Bug Report ID: #810828599

Has just happened again - this zone was a corruption nexus, i had already killed both bosses and got the +2 atlas passives then died to a rare later and the map was wiped when i respawned.