New/Edit Resource: Unable to edit custom coverage dates - by using input box only

1. Applies to Managed and Custom Resources
2. Go to New/Edit Resource
3. Enter a valid date
4. Attempt to change the date by not using the date picker but by editing input box

Expected outcome: Able to edit date w/o using the date picker

Actual outcome: Unable to change the date unless I use the date picker OR click the "X" to remove entry