[volume] negative active volume count

[kmlebedev]

version

version 8000GB 3.85 95f20180 linux amd64

echo "volume.list" | weed shell 2>&1 | grep -P 'DataNode.*active:-\d+'
      DataNode 192.168.1.2:8105 hdd(volume:47/64 active:-6 free:17 remote:0)
      DataNode 192.168.1.2:8139 hdd(volume:49/64 active:-6 free:15 remote:0)
      DataNode 192.168.1.3:8104 hdd(volume:43/64 active:-8 free:21 remote:0)
      DataNode 192.168.1.3:8133 hdd(volume:45/64 active:-8 free:19 remote:0)
      DataNode 192.168.1.4:8129 hdd(volume:49/64 active:-8 free:15 remote:0)
      DataNode 192.168.1.1:8120 hdd(volume:45/64 active:-7 free:19 remote:0)
      DataNode 192.168.1.2:8093 hdd(volume:46/64 active:-5 free:18 remote:0)
      DataNode 192.168.1.3:8103 hdd(volume:30/64 active:-20 free:34 remote:0)

Possibly due to vacuum errors