tundebabzy 41c954b8b3 Set billing hours to 0 in timesheet #9535 (#10139)
* `update_billing_hours` to use flt not cint

* if not billable, reset billable hours

* if not billable, reset time rates

* test
2017-07-28 21:05:15 +05:30
..
2017-03-06 14:26:09 +05:30