ERROR for "Straight Rebar" command

[balrobs]

using FreeCAD weekly (... will become FreeCAD 1.0) the "Straight Rebar"-command throws the following error:

08:48:03  pyException: Traceback (most recent call last):
  File "C:\Users\balrobs\AppData\Roaming\FreeCAD\Mod\Reinforcement\.\StraightRebar.py", line 241, in accept
    rebar = makeStraightRebar(
            ^^^^^^^^^^^^^^^^^^
  File "C:\Users\balrobs\AppData\Roaming\FreeCAD\Mod\Reinforcement\.\StraightRebar.py", line 380, in makeStraightRebar
    sketch.Support = [(structure, facename)]
    ^^^^^^^^^^^^^^
<class 'AttributeError'>: 'Sketcher.SketchObject' object has no attribute 'Support'

I will try to come back with a patch that will work for both 0.21 and 1.0 versions