PERF: Defer vstack in cdist to inside specific input validators
PERF: Defer vstack in cdist to inside specific input validators

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