Inconsistency between Gantt constraint date column, and taskEdit constraint date field

[maartenraes]

There is inconsistent behaviour in the advanced demo when updating the same field (constraintDate) from either Gantt inline and

Repro steps

1. https://bryntum.com/products/gantt/examples/advanced/
2. Set calendar to business in the hamburger menu in the taskbar
3. Clear constraintType and constraintDate from task 1.1.1
4. Set a constraintType to mustfinishon -> Engine will set the date, with 17:00 as hour
5. Updating the constraintDate via the taskEdit widget does not change the time
6. Updating the constraintDate via the grid column datepicker resets time to 00:00

// constraintDate set by the engine after setting a constraintType set hour to end of calendar
> task.constraintDate
Thu Jan 16 2025 17:00:00 GMT+0100 (Central European Standard Time)

// constraintDate updated through taskEdit widget
> task.constraintDate
Fri Jan 17 2025 17:00:00 GMT+0100 (Central European Standard Time)

// constraintDate update through grid column widget
> task.constraintDate
Sat Jan 18 2025 00:00:00 GMT+0100 (Central European Standard Time)

[maartenraes]

@Mick-Hardeman Seems like an easy fix, Arcady suggest same as you've mentioned before

the difference is the column editor doesn't have keepTime : 'entered'