[BUG] Editing a form's date to span 2 days doesn't work correctly

**Describe the bug**


**To Reproduce**
Steps to reproduce the behavior:
1. publish a form for a specific day ( monday)
2. edit the form to span multiple days (i.e. monday and tuesday)
3. check reader side - form should only appear for monday

**Expected behavior**
If you edit a form to span multiple days, it should duplicate across those days like when publishing a new form with this option.  


