$ git clone -n https://src.fedoraproject.org/rpms/libshumate.git /var/lib/mock/f39-build-1666168-40769/root/chroot_tmpdir/scmroot/libshumate
Cloning into '/var/lib/mock/f39-build-1666168-40769/root/chroot_tmpdir/scmroot/libshumate'...
$ git fetch origin c5654f3e8e0f8feee227a2ed2b3cad818f5c6f46:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libshumate
 * [new ref]         c5654f3e8e0f8feee227a2ed2b3cad818f5c6f46 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c5654f3 Update to 1.1.2