imrpvoe extension compeleness handling

Author: TorkelE

ext/CatalystStructuralIdentifiabilityExtension/structural_identifiability_extension.jl

@@ -158,7 +158,7 @@ function make_osys(rs::ReactionSystem; remove_conserved=true)
     # Creates the ODESystem corresponding to the ReactionSystem (expanding functions and flattening it).
     # Creates a list of the systems all symbols (unknowns and parameters).
     ModelingToolkit.iscomplete(rs) || error("Identifiability should only be computed for complete systems. A ReactionSystem can be marked as complete using the `complete` function.")
-    rs = Catalyst.expand_registered_functions(flatten(rs))
+    rs = complete(Catalyst.expand_registered_functions(flatten(rs)))
     osys = complete(convert(ODESystem, rs; remove_conserved))
     vars = [unknowns(rs); parameters(rs)]