fix: allow auto builds to be replaced by explicit relate commands.

lib/smokestack/builders/related_builder.ex

@@ -146,11 +146,11 @@ defmodule Smokestack.RelatedBuilder do
     |> Keyword.get(:build, [])
     |> List.wrap()
     |> Enum.concat(factory.auto_build)
-    |> List.wrap()
     |> Enum.map(fn
       {key, value} -> {key, value}
       key when is_atom(key) -> {key, []}
     end)
+    |> remove_explicit_relates(options)
     |> Enum.reduce_while({:ok, attrs}, fn {relationship, nested_builds}, {:ok, attrs} ->
       case build_related(
              attrs,
@@ -164,6 +164,18 @@ defmodule Smokestack.RelatedBuilder do
     end)
   end
 
+  defp remove_explicit_relates(builds, options) do
+    relates =
+      options[:relate]
+      |> List.wrap()
+      |> Map.new()
+
+    builds
+    |> Enum.reject(fn {key, _value} ->
+      is_map_key(relates, key)
+    end)
+  end
+
   defp build_related(attrs, relationship, factory, options) do
     ash_relationship = Resource.Info.relationship(factory.resource, relationship)
     build_related(attrs, relationship, factory, options, ash_relationship)

test/smokestack/dsl_test.exs

@@ -198,7 +198,7 @@ defmodule Smokestack.DslTest do
     post = AutoBuildRelateFactory.insert!(Post, relate: [author: author])
 
     # The auto-build should not be used - the existing author should be used
-    assert Ash.count(Author) == 1
+    assert Ash.count!(Author, domain: Support.Domain) == 1
     assert post.author.id == author.id
   end