[Sierra] Custom options doesn't shows after save.

Here is the small patch to fix the issue.

This patch works for us. Thanks

The patch worked to prevent the end-date from getting reset to Never, after saving node [D10.2.5]. Thanks!

This patch #2 works for us with "Drupal 10.1.8" and "Recurring Date Field Modular Widgets 3.1.0". Thank you.

Here is a rerolled patch against 3.2.1