Tasks from profile is not getting completed/checked

Issue Summary

Tasks from profile is not getting completed/checked when the page is restored.

Steps to Reproduce

Create a page add some context to it.
Publish the page
Go into the edit mode and add a task mentioning a user.
Log in as user ( if site-admin) or ask user to check profile>>tasks
As expected the task should be listed there.
Go back to the page>> page history and restore to previous version.
The tasks will not be there on the page.
Navigate to the user profile who was assigned a task and complete the task.

Expected Results

It should remove the task from the task list

Actual Results

Its throwing error message

tti-polyfill.js:3 POST https://SITENAME.atlassian.net/wiki/rest/inlinetasks/1/task/508007284747 400
XMLHttpRequest.send @ tti-polyfill.js:3
batch.js?externals=__local-default__&locale=en-US:370 Inline Task updates for 508007284747 were not persisted because of  (status: error)

Workaround
Will update once we have a workaround on this issue