$ git clone -n https://src.fedoraproject.org/rpms/python-google-cloud-debugger-client.git /var/lib/mock/f38-build-side-42-init-devel-601582-26189/root/chroot_tmpdir/scmroot/python-google-cloud-debugger-client
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-601582-26189/root/chroot_tmpdir/scmroot/python-google-cloud-debugger-client'...
$ git fetch origin f4cf8ace7953f5a35a61873a9a3fa78dd4c951e6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-google-cloud-debugger-client
 * [new ref]         f4cf8ace7953f5a35a61873a9a3fa78dd4c951e6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f4cf8ac Update to 1.6.1