Stop serializing project_node if it's None

src/snapshot_middleware/snapshots/test__client_from_imfs.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: false
   contributing_paths:
     - /foo.client.lua
-  project_node: ~
 name: foo
 class_name: LocalScript
 properties:

src/snapshot_middleware/snapshots/test__csv_from_imfs.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: false
   contributing_paths:
     - /foo.csv
-  project_node: ~
 name: foo
 class_name: LocalizationTable
 properties:

src/snapshot_middleware/snapshots/test__empty_folder.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: false
   contributing_paths:
     - /foo
-  project_node: ~
 name: foo
 class_name: Folder
 properties: {}

src/snapshot_middleware/snapshots/test__folder_in_folder.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: false
   contributing_paths:
     - /foo
-  project_node: ~
 name: foo
 class_name: Folder
 properties: {}
@@ -17,7 +16,6 @@ children:
       ignore_unknown_instances: false
       contributing_paths:
         - /foo/Child
-      project_node: ~
     name: Child
     class_name: Folder
     properties: {}

src/snapshot_middleware/snapshots/test__instance_from_imfs.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: false
   contributing_paths:
     - /foo.txt
-  project_node: ~
 name: foo
 class_name: StringValue
 properties:

src/snapshot_middleware/snapshots/test__model_from_imfs.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: false
   contributing_paths:
     - /foo.model.json
-  project_node: ~
 name: foo
 class_name: IntValue
 properties:
@@ -19,7 +18,6 @@ children:
     metadata:
       ignore_unknown_instances: false
       contributing_paths: []
-      project_node: ~
     name: The Child
     class_name: StringValue
     properties: {}

src/snapshot_middleware/snapshots/test__module_from_imfs.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: false
   contributing_paths:
     - /foo.lua
-  project_node: ~
 name: foo
 class_name: ModuleScript
 properties:

src/snapshot_middleware/snapshots/test__project_from_direct_file.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: true
   contributing_paths:
     - /foo/hello.project.json
-  project_node: ~
 name: direct-project
 class_name: Model
 properties: {}

src/snapshot_middleware/snapshots/test__project_from_folder.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: true
   contributing_paths:
     - /foo/default.project.json
-  project_node: ~
 name: indirect-project
 class_name: Folder
 properties: {}

src/snapshot_middleware/snapshots/test__project_path_property_overrides.snap

@@ -8,7 +8,6 @@ metadata:
   contributing_paths:
     - /foo/default.project.json
     - /foo/other.project.json
-  project_node: ~
 name: path-property-override
 class_name: StringValue
 properties:

src/snapshot_middleware/snapshots/test__project_with_children.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: true
   contributing_paths:
     - /foo/default.project.json
-  project_node: ~
 name: children
 class_name: Folder
 properties: {}
@@ -16,7 +15,6 @@ children:
     metadata:
       ignore_unknown_instances: true
       contributing_paths: []
-      project_node: ~
     name: Child
     class_name: Model
     properties: {}

src/snapshot_middleware/snapshots/test__project_with_path_to_project.snap

@@ -8,7 +8,6 @@ metadata:
   contributing_paths:
     - /foo/default.project.json
     - /foo/other.project.json
-  project_node: ~
 name: path-project
 class_name: Model
 properties: {}

src/snapshot_middleware/snapshots/test__project_with_path_to_project_with_children.snap

@@ -8,7 +8,6 @@ metadata:
   contributing_paths:
     - /foo/default.project.json
     - /foo/other.project.json
-  project_node: ~
 name: path-child-project
 class_name: Folder
 properties: {}
@@ -17,7 +16,6 @@ children:
     metadata:
       ignore_unknown_instances: true
       contributing_paths: []
-      project_node: ~
     name: SomeChild
     class_name: Model
     properties: {}

src/snapshot_middleware/snapshots/test__project_with_path_to_txt.snap

@@ -8,7 +8,6 @@ metadata:
   contributing_paths:
     - /foo/default.project.json
     - /foo/other.txt
-  project_node: ~
 name: path-project
 class_name: StringValue
 properties:

src/snapshot_middleware/snapshots/test__project_with_resolved_properties.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: true
   contributing_paths:
     - /foo/default.project.json
-  project_node: ~
 name: resolved-properties
 class_name: StringValue
 properties:

src/snapshot_middleware/snapshots/test__project_with_unresolved_properties.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: true
   contributing_paths:
     - /foo/default.project.json
-  project_node: ~
 name: unresolved-properties
 class_name: StringValue
 properties:

src/snapshot_middleware/snapshots/test__server_from_imfs.snap

@@ -7,7 +7,6 @@ metadata:
   ignore_unknown_instances: false
   contributing_paths:
     - /foo.server.lua
-  project_node: ~
 name: foo
 class_name: Script
 properties: