fix FieldVariable.data_from_qp() for new geometry handling
fix FieldVariable.data_from_qp() for new geometry handling

rc/sfepy,lokik/sfepy,sfepy/sfepy,olivierverdier/sfepy,rc/sfepy,vlukes/sfepy,lokik/sfepy,sfepy/sfepy,RexFuzzle/sfepy,olivierverdier/sfepy,BubuLK/sfepy,RexFuzzle/sfepy,lokik/sfepy,RexFuzzle/sfepy,olivierverdier/sfepy,sfepy/sfepy,rc/sfepy,BubuLK/sfepy,lokik/sfepy,RexFuzzle/sfepy,vlukes/sfepy,BubuLK/sfepy,vlukes/sfepy