+ small fixes to Draft Scale tool

src/Mod/Draft/Draft.py

@@ -736,7 +736,7 @@ def rotate(objectslist,angle,center=Vector(0,0,0),axis=Vector(0,0,1),copy=False)
     return newobjlist
 
 
-def scale(objectslist,delta,center=Vector(0,0,0),copy=False,legacy=False):
+def scale(objectslist,delta=Vector(1,1,1),center=Vector(0,0,0),copy=False,legacy=False):
     '''scale(objects,vector,[center,copy,legacy]): Scales the objects contained
     in objects (that can be a list of objects or an object) of the given scale
     factors defined by the given vector (in X, Y and Z directions) around
@@ -801,8 +801,9 @@ def scale(objectslist,delta,center=Vector(0,0,0),copy=False,legacy=False):
         obj.Objects = objectslist
         obj.Scale = delta
         obj.BasePoint = center
-        for o in objectslist:
-            o.ViewObject.hide()
+        if not copy:
+            for o in objectslist:
+                o.ViewObject.hide()
         formatObject(obj,objectslist[-1])
         select(obj)
         return obj