List of steps to reproduce (step by step, including full links if applicable):
- (Become a mentor of course)
- Set a random away days in Special:MentorDashboard which makes return date larger than 9999-12-31
- Click "Pause"
What happens?:
Date of today shown in (growthexperiments-mentor-dashboard-mentor-tools-mentor-status-away-message)
What should have happened instead?:
It should not. User should not be allowed to have that kinds of value inputted.
Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc.:
1.39.0-wmf.2 (8ca144b)
