Update number of deleted relations in changeset

app/models/relation.rb

@@ -175,6 +175,7 @@ class Relation < ApplicationRecord
       self.tags = {}
       self.members = []
       self.visible = false
+      changeset.num_deleted_relations += 1
       save_with_history!
     end
   end

test/controllers/api/changesets/uploads_controller_test.rb

@@ -1209,6 +1209,11 @@ module Api
           end
         end
 
+        changeset.reload
+        assert_equal 1, changeset.num_changes
+        assert_predicate changeset, :num_type_changes_in_sync?
+        assert_equal 1, changeset.num_deleted_relations
+
         relation.reload
         assert_not_predicate relation, :visible?
       end
@@ -1252,6 +1257,13 @@ module Api
           assert_dom "> relation", 2
         end
 
+        changeset.reload
+        assert_equal 4, changeset.num_changes
+        assert_predicate changeset, :num_type_changes_in_sync?
+        assert_equal 1, changeset.num_deleted_nodes
+        assert_equal 1, changeset.num_deleted_ways
+        assert_equal 2, changeset.num_deleted_relations
+
         assert_not Node.find(used_node.id).visible
         assert_not Way.find(used_way.id).visible
         assert_not Relation.find(super_relation.id).visible

test/controllers/api/relations_controller_test.rb

@@ -736,6 +736,11 @@ module Api
 
         assert_response :success
         assert_operator @response.body.to_i, :>, relation.version, "delete request should return a new version number for relation"
+
+        changeset.reload
+        assert_equal 1, changeset.num_changes
+        assert_predicate changeset, :num_type_changes_in_sync?
+        assert_equal 1, changeset.num_deleted_relations
       end
     end