Drone sign and pending builds

So I’ve just upgraded to Drone 1.0.0-rc.1, and have signed my pipeline with the drone sign command; however, if I make the repo in question “protected”, then all my builds are stuck in a pending state. The only way I’ve found to bypass this is to “approve” them through the Drone CLI.

My understanding is that a signed pipeline should not need approval. Is this correct? What am I doing wrong?