$ git clone -n https://src.fedoraproject.org/rpms/avogadro2.git /var/lib/mock/f42-build-864637-172514/root/chroot_tmpdir/scmroot/avogadro2
Cloning into '/var/lib/mock/f42-build-864637-172514/root/chroot_tmpdir/scmroot/avogadro2'...
$ git fetch origin 70420fbcdedf102e7b3e826fc1e689f14c5afe11:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/avogadro2
 * [new ref]         70420fbcdedf102e7b3e826fc1e689f14c5afe11 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 70420fb Add Georgian language sub-package