Add test for branches in _clean_inputs()
Add test for branches in _clean_inputs()

nmayorov/scipy,mdhaber/scipy,e-q/scipy,andyfaff/scipy,WarrenWeckesser/scipy,Stefan-Endres/scipy,matthew-brett/scipy,WarrenWeckesser/scipy,e-q/scipy,WarrenWeckesser/scipy,Stefan-Endres/scipy,andyfaff/scipy,vigna/scipy,tylerjereddy/scipy,scipy/scipy,mdhaber/scipy,grlee77/scipy,ilayn/scipy,Eric89GXL/scipy,perimosocordiae/scipy,perimosocordiae/scipy,vigna/scipy,matthew-brett/scipy,tylerjereddy/scipy,ilayn/scipy,vigna/scipy,tylerjereddy/scipy,andyfaff/scipy,mdhaber/scipy,ilayn/scipy,Eric89GXL/scipy,nmayorov/scipy,nmayorov/scipy,grlee77/scipy,rgommers/scipy,andyfaff/scipy,WarrenWeckesser/scipy,zerothi/scipy,zerothi/scipy,scipy/scipy,Stefan-Endres/scipy,scipy/scipy,mdhaber/scipy,Stefan-Endres/scipy,anntzer/scipy,tylerjereddy/scipy,tylerjereddy/scipy,endolith/scipy,zerothi/scipy,Eric89GXL/scipy,scipy/scipy,ilayn/scipy,e-q/scipy,WarrenWeckesser/scipy,matthew-brett/scipy,zerothi/scipy,nmayorov/scipy,rgommers/scipy,grlee77/scipy,endolith/scipy,perimosocordiae/scipy,endolith/scipy,endolith/scipy,Eric89GXL/scipy,mdhaber/scipy,rgommers/scipy,matthew-brett/scipy,mdhaber/scipy,andyfaff/scipy,vigna/scipy,grlee77/scipy,zerothi/scipy,perimosocordiae/scipy,Stefan-Endres/scipy,anntzer/scipy,e-q/scipy,Eric89GXL/scipy,WarrenWeckesser/scipy,scipy/scipy,ilayn/scipy,vigna/scipy,perimosocordiae/scipy,zerothi/scipy,ilayn/scipy,rgommers/scipy,grlee77/scipy,anntzer/scipy,Stefan-Endres/scipy,endolith/scipy,perimosocordiae/scipy,nmayorov/scipy,scipy/scipy,Eric89GXL/scipy,e-q/scipy,anntzer/scipy,matthew-brett/scipy,anntzer/scipy,endolith/scipy,anntzer/scipy,andyfaff/scipy,rgommers/scipy