UserTask due date is incorrectly calculated when duration is defined in business days using calendar

[gorbunkov]

Jmix version: 1.2.3

When user task duration is defined in days, e.g. P1D and business calendar is selected for date evaluation then the due date is actually calculated not by adding one business day to the current time, but by adding 24 business hours to the current time (it's about 3 business days depending on the schedule)

[gorbunkov]

When business calendar is selected for the UserTask and due date interval is defined in days (e.g. P2D), then such process should not be deployed.

[konyashkina]

Tested on Jmix version: 1.3.999-SNAPSHOT