Description of problem:
On a six node cluster created a distributed-replicated enabled quota set hard and soft time out to zero. Created files and directories from mount such that the limit is reached. Performed an add-brick and started rebalance after which we killed one of the bricks and started the volume while rebalance and self heal is in progress.Created some files and directories write allowed past quota limit.

Version-Release number of selected component (if applicable):
Whatever is the latest version in upstream

How reproducible:
constantly

Steps to Reproduce:
1.Enable quota on the volume.
2.Set hard and soft time out to zero.
3.Create some files and directories from mount point so that the limits are reached.
4.Perform add-brick operation on the volume. 
5.Start rebalance on the volume. 
6.While rebalance is running, kill one of the bricks of the volume and start after a while. 
7.While rebalance + self heal is in progress.
8.Create some more files and directories from the mount point until limit is hit.

Actual results:
Writes allowed past quota limit.

Expected results:
Writes shouldn't be allowed past quota limit.

Additional info: