I think this started happening some weeks ago; I'm on Archlinux, so it was probably some relatively recent change.

But I've noticed accessing the color picker from the keyboard shortcut (ctrl + alt) causes it to pick up the alpha channel as well. It didn't used to do this, and there is no where in the color selector dialogs to change this. However, if you use the eyedropper tool directly, this doesn't happen, and it works like expected.

If this is a new feature, I would still prefer the old behavior to at least be accessible somehow. Thanks.