$ git clone -n https://src.fedoraproject.org/rpms/gnome-tour.git /var/lib/mock/f42-build-side-1-3585883-46908/root/chroot_tmpdir/scmroot/gnome-tour
Cloning into '/var/lib/mock/f42-build-side-1-3585883-46908/root/chroot_tmpdir/scmroot/gnome-tour'...
$ git fetch origin 2694d85c75056adb4a574d622c8b79ed66a13adc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-tour
 * [new ref]         2694d85c75056adb4a574d622c8b79ed66a13adc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2694d85 Adapt to libadwaita API changes