$ git clone -n https://src.fedoraproject.org/rpms/xdg-dbus-proxy.git /var/lib/mock/f45-build-38674-727/root/chroot_tmpdir/scmroot/xdg-dbus-proxy
Cloning into '/var/lib/mock/f45-build-38674-727/root/chroot_tmpdir/scmroot/xdg-dbus-proxy'...
$ git fetch origin 0b22ef9d6d940c75ba07e43cb2b0e97c8b59ac17:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xdg-dbus-proxy
 * [new ref]         0b22ef9d6d940c75ba07e43cb2b0e97c8b59ac17 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0b22ef9 Update to 0.1.8