3106763 - Single Planning Calender - headerDateSelect contains wrong date

when the 'headerDateSelect' of SinglePlanningCalendar is used
(issue could be reproduced with following link):

https://sapui5.hana.ondemand.com/#/entity/sap.m.SinglePlanningCalendar/sample/sap.m.sample.SinglePlanningCalendar
-> clicked 'Work Week'
-> Choose the date 'Sep, 27 2021 - Oct, 1 2021'
-> clicked on 'Mon 27' header date
-> will get the start date of 'Sep 27, 2021, ...'
-> clicked on 'Wed 29' header date
-> should get the start date of 'Sep 29, 2021, ...'
     while still get the start date of 'Sep 27, 2021, ...'

issue happened with SAPUI5 1.94

headerDateSelect, SinglePlanningCalendar , KBA , CA-UI5-CTR-BAL , SAP UI5 Controls Balkan team , Problem