fix: retain specialization of explicit `f` in `remake`#938

ChrisRackauckas merged 3 commits intoSciML:masterSciML/SciMLBase.jl:masterfrom

AayushSabharwal:as/scimlfn-specializationAayushSabharwal/SciMLBase.jl:as/scimlfn-specializationCopy head branch name to clipboard