I've just confirmed that the current wip root less change to mozdevice combined with a one line change to mozregression suffices to allow mozregression to complete a bisection. using the same arguments as comment 0. So, this is looking good so far.
Bug 1644327 Comment 13 Edit History
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I've just confirmed that the current wip root less change to mozdevice combined with a one line change to mozregression suffices to allow mozregression to complete a bisection using the same arguments as comment 0. So, this is looking good so far.