Can't write CustomData to DOM for CalendarAppointment correctly

[niechenghai]

OpenUI5 version:
1.123.2
Browser/version (+device/version):
chrome: Version 124.0.6367.209 (Official Build) (x86_64)
Any other tested browsers/devices(OK/FAIL):
FAIL
Microsoft Edge
Version 125.0.2535.51 (Official build) (x86_64)

URL (minimal example if possible):

official example:
https://ui5.sap.com/#/entity/sap.m.SinglePlanningCalendar/sample/sap.m.sample.SinglePlanningCalendar

User/password (if required and possible - do not post any confidential information here):

Steps to reproduce the problem:

1. open code editor, add customData to CalendarAppointment:
   unified:customData
   <core:CustomData key="activitystate" value="BBBBBBB" writeToDom="true"/>
   </unified:customData>

2. click "RUN"

3. nav to debug tool Elements tab, press cmd + F to search 'BBBBBBB', you only find 1 or 2 occurrences

What is the expected result?

The customdata is added to appointment, so it should be same as appointment

What happens instead?

Any other information? (attach screenshot if possible)

[Todor-ads]

Hello @niechenghai ,

Thank you for sharing this finding. I've created an internal incident DINC0163768. The status of the issue will be updated here in GitHub.

Regards,
Todor