GM: Car enters ACC standstill while in motion

If the car is at ACC standstill and the resume button is pressed before OP wants to send a gas command, the car will (expectedly) lapse back into standstill after a moment. It is possible to time this just wrong such that the brakes release but the car falls back into ACC standstill. I believe edge cases of gas gating may also be able to cause this, though I have not observed it happen. No fault is displayed, but the car is unresponsive and in motion until the driver resumes input.

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806907cd33ef2647/00000070--6350d749b6/5
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N.B. This route is on nightly-dev from a few days ago, with dirty git to remove the dashcam flag from my car.