Date pickers select unexpected initial date

[RutgerDijk]

Which Umbraco version are you using? (Please write the exact version, example: 10.1.0)

10.3.0

Bug summary

When upgrading to Umbraco 10.3.0 (or higher) and adding a date picker to a document type the date picker is expected to select the current date. Instead it selects the 1st of last day of the month or even the 1st of january.

Specifics

No response

Steps to reproduce

• Create an Umbraco project
• Set a Date Picker (any) on DocType (LLL or MM-DD-YYYY)
• Create a new page from DocType
• Select a date for the first time
• Select a new date and check if the calendar view starts at the 1st of the month.
  

Expected result / actual result

• Expected to see the selection on the current date when opening calendar view
• Actual result is 1st of last day of the month as initial selected date and sometimes even the 1st of january

[Zeegaan]

Interesting thing here is the configuration like you mentioned 🎉
With default configuration YYYY-MM-DD it works just fine, but as soon as that is changed, it doesn't 🤔
I suspect it has something to do with how we return the values, as even though they are configured differently, the value for the editors are formatted the same 🕵️‍♂️

[github-actions]

Hi @RutgerDijk,

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