start/stop miner status not correct

[trungtt198x]

Hello,

I start a private "eth" node without enabling miner.
Then, I "geth attach" to this node for administration and the Mist browser as the front-end.
The first time, when I run: miner.start(1), I really see the miner status of the node is changed correctly.
After that, I run: miner.stop() for stopping the miner. I also see the miner status of the node updated correcty. After that, if I try again miner.start(1) then I no longer see the updated miner status correctly although the log output of the running "eth" node looks like in mining.

Maybe this's a bug of net-stats?