[Fix] Typo in statically parsed ref unpacking (#7365)

test statically parsed two-argument ref

(cherry picked from commit 0891aef)

.changes/unreleased/Fixes-20230414-163642.yaml

@@ -0,0 +1,6 @@
+kind: Fixes
+body: fix typo in unpacking statically parsed ref
+time: 2023-04-14T16:36:42.279838-04:00
+custom:
+  Author: MichelleArk
+  Issue: "7364"

core/dbt/parser/models.py

@@ -492,7 +492,7 @@ def populate(self, node: ModelNode, config: ContextConfig, statically_parsed: Di
             if len(ref) == 1:
                 package, name = None, ref[0]
             else:
-                package, name = ref[0], refs[1]
+                package, name = ref
 
             refs.append(RefArgs(package=package, name=name))
 

test/unit/test_graph.py

@@ -215,6 +215,37 @@ def test__two_models_simple_ref(self):
             ],
         )
 
+    def test__two_models_package_ref(self):
+        self.use_models(
+            {
+                "model_one": "select * from events",
+                "model_two": "select * from {{ref('test_models_compile', 'model_one')}}",
+            }
+        )
+
+        config = self.get_config()
+        manifest = self.load_manifest(config)
+        compiler = self.get_compiler(config)
+        linker = compiler.compile(manifest)
+
+        self.assertCountEqual(
+            linker.nodes(),
+            [
+                "model.test_models_compile.model_one",
+                "model.test_models_compile.model_two",
+            ],
+        )
+
+        self.assertCountEqual(
+            linker.edges(),
+            [
+                (
+                    "model.test_models_compile.model_one",
+                    "model.test_models_compile.model_two",
+                )
+            ],
+        )
+
     def test__model_materializations(self):
         self.use_models(
             {