$ git clone -n https://src.fedoraproject.org/rpms/waybar.git /var/lib/mock/f45-build-38351-723/root/chroot_tmpdir/scmroot/waybar
Cloning into '/var/lib/mock/f45-build-38351-723/root/chroot_tmpdir/scmroot/waybar'...
$ git fetch origin ab5016c9bcef88948aa47e4134561e3032cb5e54:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/waybar
 * [new ref]         ab5016c9bcef88948aa47e4134561e3032cb5e54 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab5016c systemd: declare known incompatible desktop environments