Ensure we pass on the enable setting if present, or use the default of True if not in build_schedule_item() Prior to this, when schedule.present compares the existing schedule to the one crafted by this function, enabled will actually be removed at each run.  schedule.present sees a modification needs to be made, and invokes schedule.modify, which does so with enabled: True, creating and endless loop of an 'enabled' removal and addition.
Ensure we pass on the enable setting if present, or use the default of True if not in build_schedule_item()
Prior to this, when schedule.present compares the existing schedule to the one crafted by this function, enabled will actually be removed at each run.  schedule.present sees a modification needs to be made, and invokes schedule.modify, which does so with enabled: True, creating and endless loop of an 'enabled' removal and addition.

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt