$ git clone -n https://src.fedoraproject.org/rpms/telepathy-glib.git /var/lib/mock/f39-build-1526970-36115/root/chroot_tmpdir/scmroot/telepathy-glib
Cloning into '/var/lib/mock/f39-build-1526970-36115/root/chroot_tmpdir/scmroot/telepathy-glib'...
$ git fetch origin f60337be4fa9f3e7bd33ad1eb2e0f165e0754715:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/telepathy-glib
 * [new ref]         f60337be4fa9f3e7bd33ad1eb2e0f165e0754715 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f60337b simplify gitignore