Fix for certain scalar broadcasting expressions (#19)

Author: mtfishman

Project.toml

@@ -1,7 +1,7 @@
 name = "NamedDimsArrays"
 uuid = "60cbd0c0-df58-4cb7-918c-6f5607b73fde"
 authors = ["ITensor developers <support@itensor.org> and contributors"]
-version = "0.3.6"
+version = "0.3.7"
 
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"

src/abstractnameddimsarray.jl

@@ -769,6 +769,9 @@ end
 function Broadcast.broadcast_shape(ax1::Tuple{}, ax2::NaiveOrderedSet)
   return ax2
 end
+function Broadcast.broadcast_shape(ax1::NaiveOrderedSet, ax2::Tuple{})
+  return ax1
+end
 
 function Base.promote_shape(ax1::NaiveOrderedSet, ax2::NaiveOrderedSet)
   return NaiveOrderedSet(set_promote_shape(Tuple(ax1), Tuple(ax2)))