Fix attribute inclusion in import/export config ignored in some cases

CHANGELOG

@@ -90,6 +90,9 @@ v 8.11.0 (unreleased)
   - Fix importing GitLab projects with an invalid MR source project
   - Sort folders with submodules in Files view !5521
 
+v 8.10.6 (unreleased)
+  - Fix import/export configuration missing some included attributes
+
 v 8.10.5
   - Add a data migration to fix some missing timestamps in the members table. !5670
   - Revert the "Defend against 'Host' header injection" change in the source NGINX templates. !5706

lib/gitlab/import_export/json_hash_builder.rb

@@ -57,10 +57,7 @@ module Gitlab
       # +value+ existing model to be included in the hash
       # +json_config_hash+ the original hash containing the root model
       def create_model_value(current_key, value, json_config_hash)
-        parsed_hash = { include: value }
-        parse_hash(value, parsed_hash)
-
-        json_config_hash[current_key] = parsed_hash
+        json_config_hash[current_key] = parse_hash(value, { include: value })
       end
 
       # Calls attributes finder to parse the hash and add any attributes to it
@@ -69,8 +66,8 @@ module Gitlab
       # +parsed_hash+ the original hash
       def parse_hash(value, parsed_hash)
         @attributes_finder.parse(value) do |hash|
-          parsed_hash = { include: hash_or_merge(value, hash) }
-        end
+          { include: hash_or_merge(value, hash) }
+        end || parsed_hash
       end
 
       # Adds new model configuration to an existing hash with key +current_key+

spec/lib/gitlab/import_export/reader_spec.rb

@@ -12,7 +12,8 @@ describe Gitlab::ImportExport::Reader, lib: true  do
                   except: [:iid],
                   include: [:merge_request_diff, :merge_request_test]
                 } },
-                { commit_statuses: { include: :commit } }]
+                { commit_statuses: { include: :commit } },
+                { project_members: { include: { user: { only: [:email] } } } }]
     }
   end
 

spec/support/import_export/import_export.yml

@@ -7,6 +7,8 @@ project_tree:
     - :merge_request_test
   - commit_statuses:
     - :commit
+  - project_members:
+    - :user
 
 included_attributes:
   project:
@@ -14,6 +16,8 @@ included_attributes:
     - :path
   merge_requests:
     - :id
+  user:
+    - :email
 
 excluded_attributes:
   merge_requests: