$ git clone -n https://src.fedoraproject.org/rpms/waybar.git /var/lib/mock/f40-build-797262-141191/root/chroot_tmpdir/scmroot/waybar
Cloning into '/var/lib/mock/f40-build-797262-141191/root/chroot_tmpdir/scmroot/waybar'...
$ git fetch origin 9423a107a48f511516e1534b9bc84309ce977040:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/waybar
 * [new ref]         9423a107a48f511516e1534b9bc84309ce977040 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9423a10 Update to 0.10.0 (#2269431)