$ git clone -n https://src.fedoraproject.org/rpms/smoldyn.git /var/lib/mock/f40-build-735062-106180/root/chroot_tmpdir/scmroot/smoldyn
Cloning into '/var/lib/mock/f40-build-735062-106180/root/chroot_tmpdir/scmroot/smoldyn'...
$ git fetch origin f9bbafd09065774ad4ad6b77d8e9e0f3afa6ad93:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/smoldyn
 * [new ref]         f9bbafd09065774ad4ad6b77d8e9e0f3afa6ad93 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9bbafd Move include files