And the latest commit on the configured release branch for ELPA is
b76e5cc1b3f1d1b7e67e72eb1a5d52058f45cf84, which is the one that updates the
version header to 0.8.1.
The `listen` recipe is:
(listen :url "https://github.com/alphapapa/listen.el"
:doc "README.org")
so there is no configured "release branch".
*facepalm* I don't know how I made that mistake, especially so soon after
adding `activities' with `:release-branch "stable"' in its recipe.
Is it safe to just add that to the `listen' recipe now so I can do that
going forward?