fix: noop check (#953)

Author: avik-pal

src/TracedUtils.jl

@@ -629,6 +629,7 @@ function elem_apply(f, args::Vararg{Any,Nargs}) where {Nargs}
 end
 
 function broadcast_to_size(arg::AbstractArray{<:TracedRNumber}, rsize)
+    collect(size(arg)) == collect(rsize) && return arg
     if Reactant.ancestor(arg) isa TracedRArray
         return broadcast_to_size(materialize_traced_array(arg), rsize)
     end