fix: calc worktime, when nothing is set

Backend/models/workDay.go

@@ -85,7 +85,7 @@ func (d *WorkDay) GetTimes(u User, base WorktimeBase, includeKurzarbeit bool) (w
 
 func getWorkPause(d *WorkDay) (work, pause time.Duration) {
 	//if today calc, else take from db
-	if helper.IsSameDate(d.Date(), time.Now()) {
+	if d.workTime == 0 && d.pauseTime == 0 && len(d.Bookings) > 0 {
 		return calcWorkPause(d.Bookings)
 	} else {
 		return d.workTime, d.pauseTime