Multiplying relativedelta with fractional days ends up with truncated values

[jrmylow]

Multiplying a relativedelta with non-integer day values (e.g. relativedelta(days=+1.5) converts to integer values of days, losing information in the process.

The cause appears to be applying a blanket int() to the results of the multiplication L495, without checking to see if fractional days should be converted down into hours/seconds etc.

Is this intended behaviour? Currently relativedelta accepts non-integer values for days (as does the python standard library), so my current assumption is that it should mirror the behaviour from datetime and convert fractional days.

Minimal reproducible example:

import dateutil
delta = dateutil.relativedelta.relativedelta(days=1.5)
print(delta) # relativedelta(days=+1.5)
print(delta * 1) # relativedelta(days=+1)

By contrast, datetime.timedelta from the standard library does not lose the half-day:

import datetime
delta = datetime.timedelta(days=1.5)
print(delta) # datetime.timedelta(days=1, seconds=43200)
print(delta * 1) # datetime.timedelta(days=1, seconds=43200)

Dateutil version: 2.8.2
Python version: 3.10.4