Add `html` to sensitive words

lib/gitlab/import_export/attribute_cleaner.rb

@@ -4,7 +4,7 @@ module Gitlab
   module ImportExport
     class AttributeCleaner
       ALLOWED_REFERENCES = RelationFactory::PROJECT_REFERENCES + RelationFactory::USER_REFERENCES + ['group_id']
-      PROHIBITED_SUFFIXES = %w(_id _html).freeze
+      PROHIBITED_SUFFIXES = %w[_id _html].freeze
       def self.clean(*args)
         new(*args).clean

spec/features/projects/import_export/export_file_spec.rb

@@ -12,7 +12,7 @@ describe 'Import/Export - project export integration test', :js do
   let(:export_path) { "#{Dir.tmpdir}/import_file_spec" }
   let(:config_hash) { YAML.load_file(Gitlab::ImportExport.config_file).deep_stringify_keys }
-  let(:sensitive_words) { %w[pass secret token key encrypted] }
+  let(:sensitive_words) { %w[pass secret token key encrypted html] }
   let(:safe_list) do
     {
       token: [ProjectHook, Ci::Trigger, CommitStatus],

spec/lib/gitlab/import_export/project_tree_restorer_spec.rb

@@ -63,6 +63,7 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
           it 'does not import note_html' do
             note_content = 'Quo reprehenderit aliquam qui dicta impedit cupiditate eligendi'
             issue_note = Issue.find_by(description: 'Aliquam enim illo et possimus.').notes.select { |n| n.note.match(/#{note_content}/)}.first
+
             expect(issue_note.note_html).to match(/#{note_content}/)
           end
         end
@@ -71,6 +72,7 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
           it 'does not import note_html' do
             note_content = 'Sit voluptatibus eveniet architecto quidem'
             merge_request_note = MergeRequest.find_by(title: 'MR1').notes.select { |n| n.note.match(/#{note_content}/)}.first
+
             expect(merge_request_note.note_html).to match(/#{note_content}/)
           end
         end