Calendar: mindate and maxdate does not work

[ghost]

Describe the defect
As described here
https://forum.primefaces.org/viewtopic.php?f=3&t=67214
setting mindate/maxdate in p:calender get strange results.

This one works:
<p:calendar id="cal" mode="inline" value="#{data.selectedDate}" pattern="dd.MM.yyyy" locale="de" mindate="03.06.2021" maxdate="09.06.2021"> <p:ajax event="dateSelect" listener="#{controller.dateSelectListener}" update="controlButtons"/> </p:calendar>

For this dates, I got a error "Calendar : "cal" minimum date must be less than maximum date.":
<p:calendar id="cal" mode="inline" value="#{data.selectedDate}" pattern="dd.MM.yyyy" locale="de" mindate="27.05.2021" maxdate="10.06.2021"> <p:ajax event="dateSelect" listener="#{controller.dateSelectListener}" update="controlButtons"/> </p:calendar>

Reproducer
Just open your showcase
https://www.primefaces.org/showcase/ui/input/calendar/calendar.xhtml
In your showcase mindate="4/1/14" and maxdate="7/1/14". It seems that p:calendar does not use these values.

Environment:

• PF Version: 10.0.0
• JSF + version: MyFaces 2.3.9
• Affected browsers: all

To Reproduce
See "Reproducer" for details.

Expected behavior
mindate and maxdate should work as expected for ALL dates. I can't migrate to datepicker at the moment, which was suggested by another user.

Example XHTML
See "Reproducer" for details.

Example Bean
See "Reproducer" for details.

[wal-jan]

DatePicker shows same behaviour

<p:datePicker id="datepicker" mindate="27.05.2021" maxdate="10.06.2021" pattern="dd.MM.yyyy"/>

results in ... minimum date must be less than maximum date