Avoid crash when back_leveling_delay is None.

issue3195 review785002 (transplanted from fcd869cb3d0c35b2aa5907ef5ad4fe0202b8a8d8)
2013-05-02 00:47:50 +02:00
parent ca491c9a7f
commit f84e1dc993
1 changed files with 1 additions and 1 deletions
@@ -484,7 +484,7 @@ 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