Fix #5565 - NullReferenceException in ConvertAsync helper (#5582)
Fix #5565 - NullReferenceException in ConvertAsync helper (#5582)


dotnet/orleans,amccool/orleans,waynemunro/orleans,yevhen/orleans,ElanHasson/orleans,ibondy/orleans,ElanHasson/orleans,waynemunro/orleans,galvesribeiro/orleans,jthelin/orleans,ReubenBond/orleans,Liversage/orleans,sergeybykov/orleans,dotnet/orleans,benjaminpetit/orleans,sergeybykov/orleans,hoopsomuah/orleans,amccool/orleans,ibondy/orleans,Liversage/orleans,Liversage/orleans,amccool/orleans,veikkoeeva/orleans,jason-bragg/orleans,hoopsomuah/orleans,yevhen/orleans,galvesribeiro/orleans