Subtraction of dates does not return days-time-duration

[nicpuppa]

Describe the bug

The Subtracion of two date doesn't return a days in time duration as described in the documentation, instead it returns an hours duration

date("2020-04-06") - date("2020-04-01")
// duration("P120H")

There is a workaround, wrap the subtracion in the string() function

string(date("2020-04-06") - date("2020-04-01"))
date("2020-04-06") - date("2020-04-01")
// duration("P5D")

To Reproduce

Use the playground and evaluate the expression date("2020-04-06") - date("2020-04-01")

Expected behavior
The subtraction should return a duration of days also without the string wrap

Environment

• FEEL engine version: latest version, but also previous ones

SUPPORT-24657