$ git clone -n https://src.fedoraproject.org/rpms/gnome-shell-extension-screen-autorotate.git /var/lib/mock/f40-build-1999200-44312/root/chroot_tmpdir/scmroot/gnome-shell-extension-screen-autorotate
Cloning into '/var/lib/mock/f40-build-1999200-44312/root/chroot_tmpdir/scmroot/gnome-shell-extension-screen-autorotate'...
$ git fetch origin e90526b3cf54903c631219efe7ce8d906a8fb35c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-shell-extension-screen-autorotate
 * [new ref]         e90526b3cf54903c631219efe7ce8d906a8fb35c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e90526b Update to 14 (rhbz#2238596)