This is repeatable, but only tested on chaos. As i feel this bug can be exploited to give an advantage, i wont describe details of it. I will however, give details of it to any dev that messages me about it.
Bug in its simplist form... If you begin harvesting a node, then move away from the node while still harvesting, when you stop, you will continue to harvest as if you were next to it, until it is emptied, or you click Stop Action