HTML tags are displayed in H5P activity results title when formatstringstriptags is disabled

Testing covered by behat test mod/h5pactivity/tests/behat/result_fillin.feature and mod/h5pactivity/tests/behat/result_longfillin.feature https://ci.moodle.org/view/Testing/job/DEV.01%20-%20Developer-requested%20Behat/7075/   Manual testing 1 As admin, disable the general setting "formatstringstriptags" Create a course with an H5P activity using the provided h5p package  essay-4-166755.h5p Enrol a user as student Login as this student and write this text as a solution: The book is about a guy called Bilbo. One day, he gets some unexpected visitors: Gandalf, the wizard and nine dwarfs. Some of them had strange names such as Gloin or Dori. Press Check button Check that your score is 50/80 Refresh the page Go to the "View my attempts" Click on the view report form the attempt Check that the essay title don't show any HTML tags. Manual testing 2 As admin, enter the course form the previous test and create  a H5P activity using the  filltheblanks.h5p  package Login as student and go to the activity Enter this values: Gap 1: Narnia Gap 2: Xadia Gap 3: King landing Gap 4: Canberra Refresh the page and go to "my attempts" Click on the view report from the attempt Check that no HTML tags is displayed in the report.