Remove object duplication for Constraint command.
Remove object duplication for Constraint command.

SkySkimmer/coq,Zimmi48/coq,coq/coq,maximedenes/coq,JasonGross/coq,Matafou/coq,maximedenes/coq,Zimmi48/coq,ppedrot/coq,Matafou/coq,ejgallego/coq,ppedrot/coq,SkySkimmer/coq,coq/coq,Zimmi48/coq,SkySkimmer/coq,SkySkimmer/coq,JasonGross/coq,maximedenes/coq,coq/coq,gares/coq,ppedrot/coq,ejgallego/coq,gares/coq,gares/coq,gares/coq,ejgallego/coq,gares/coq,silene/coq,silene/coq,Zimmi48/coq,coq/coq,ejgallego/coq,JasonGross/coq,ppedrot/coq,maximedenes/coq,ppedrot/coq,silene/coq,JasonGross/coq,maximedenes/coq,Matafou/coq