Mining gets cancelled?

I am mining some ore. I decide to look in my hold. I come back out immediately and the mining job has finished. Cool I think, I have found a ‘feature’ to speed up mining. Then I notice mining display is reset also. I do this a few times as fast as i can and note the ore in my hold, it doesnt increase. Bugger, not an exploitable feature then.
It looks like if i go into my hold in the middle of a mining session it cancels the mining task. Is this correct?

Yes, this is correct, as I said in this post:

You are upset that you cannot exploit the game ? :worried:

Lol no. but must remember not to check the hold mid mining session in future :blush: