List of steps to reproduce (step by step, including full links if applicable):

• Click on task from the suggested edits module in Special:Homepage
• Save an edit
• Close the post-edit dialog

What happens?:
The help button shows up again.
For unstructured task, the help panel is opened upon clicking the button.
For structured task, the help panel button is shown briefly and disappears (the page is reloaded).

What should have happened instead?:
The help button should not be shown again after editing.

Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc.:
This stems from the discussion for post-edit dialog changes in T301603#7766803.