fix: fix `get_mtkparameters_reconstructor` handling of nonnumerics#3702

ChrisRackauckas merged 3 commits intoSciML:backport-v9SciML/ModelingToolkit.jl:backport-v9from

AayushSabharwal:as/nonnumeric-initAayushSabharwal/ModelingToolkit.jl:as/nonnumeric-initCopy head branch name to clipboard