Don't re-flatten parameters if they are already flattened
Don't re-flatten parameters if they are already flattened

colesbury/nn,apaszke/nn,andreaskoepf/nn,eriche2016/nn,nicholas-leonard/nn,jhjin/nn,kmul00/nn,joeyhng/nn,sagarwaghmare69/nn,diz-vara/nn,jonathantompson/nn,elbamos/nn,caldweln/nn,xianjiec/nn,PraveerSINGH/nn