Sam Isaacson

How does this interact with non-traceable user-registered functions? (Things like using user-written functions in rates via `@register_symbolic`?)

Can you given an informative error in that case then?

Compounds are a basic model specification property though, so I'd say they should be handled in model construction sections.

The following tests are being disabled due to this bug in https://github.com/SciML/Catalyst.jl/pull/823 and should be added back as part of fixing this: ```julia @time @safetestset "Coupled CRN/Equation Systems" begin include("reactionsystem_structure/coupled_equation_reaction_systems.jl")...

I think this is now fixed, but @TorkelE feel free to reopen if it isn't.

@ChrisRackauckas can we get a decision on whether this should be supported? This is currently a blocker on making a Catalyst 14 release with MTK9 support and there seems to...

Just to add, if this is something that is supposed to work with `parameter_dependencies` we are happy to switch to using that to define conservation constants instead of using `defaults`,...

And modifying @TorkelE's example to use `parameter_dependencies` seems to error suggesting there is no support for using initial values of unknowns in defining a dependent parameter. Or is there some...

I’d just drop it since none of those packages are guaranteed or tested to work on earlier versions at this point.

Ok, thanks for letting us know.