Avoid crash when back_leveling_delay is None.

issue3195 review785002
2013-05-02 00:47:50 +02:00
1 parent b220cb5f22
commit bd8e898dc8
@@ -486,7 +486,7 @@ class Work:

            if constraint_finish:
                late_finish = self.add_hours(work.company, constraint_finish,
-                        -work.back_leveling_delay)
+                        -(work.back_leveling_delay or 0.0))
            else:
                late_finish = None