[models] Fix bug affecting attaching actions to subclasses of other classes.
[models] Fix bug affecting attaching actions to subclasses of other classes.

When attaching an action to a class that was a subclass of another class that
had actions attached to it, the NITableViewActions object was overriding the
superclass' actions object rather than creating a new one.

compositeprimes/nimbus,cnbin/nimbus,tranhieutt/nimbus,veue/nimbus,ycaihua/nimbus,michaelShab/nimbus,Guokr1991/nimbus,ycaihua/nimbus,treejames/nimbus,veue/nimbus,cnbin/nimbus,bangquangvn/nimbus,michaelShab/nimbus,andaluz/nimbus,quyixia/nimbus,weiyanwu1984/nimbus,kviksilver/nimbus,chanffdavid/nimbus,0xced/nimbus,mohsinalimat/nimbus,bogardon/nimbus,panume/nimbus,marcobgoogle/nimbus,DreamHill/nimbus,kviksilver/nimbus,WeeTom/nimbus,JyHu/nimbus,zilaiyedaren/nimbus,zilaiyedaren/nimbus,LcongGitHub/nimbus,dieface/nimbus,ycaihua/nimbus,dmishe/nimbus,pilot34/nimbus_fork,xiaohongjun0509/nimbus,liuwu/nimbus,mohsinalimat/nimbus,SuPair/nimbus,dieface/nimbus,SuPair/nimbus,quyixia/nimbus,bogardon/nimbus,jverkoey/nimbus,zilaiyedaren/nimbus,liuwu/nimbus,WeeTom/nimbus,pilot34/nimbus_fork,zilaiyedaren/nimbus,jverkoey/nimbus,andaluz/nimbus,panume/nimbus,djMax/nimbus,dachaoisme/nimbus,bogardon/nimbus,LcongGitHub/nimbus,0xced/nimbus,DreamHill/nimbus,bangquangvn/nimbus,zilaiyedaren/nimbus,andaluz/nimbus,JyHu/nimbus,LcongGitHub/nimbus,djMax/nimbus,xiaohongjun0509/nimbus,dmishe/nimbus,pilot34/nimbus_fork,jverkoey/nimbus,WeeTom/nimbus,jverkoey/nimbus,0xced/nimbus,DreamHill/nimbus,weiyanwu1984/nimbus,dachaoisme/nimbus,WeeTom/nimbus,Guokr1991/nimbus,pilot34/nimbus_fork,michaelShab/nimbus,hanangellove/nimbus,WeeTom/nimbus,compositeprimes/nimbus,treejames/nimbus,hanangellove/nimbus,tranhieutt/nimbus,xiaohongjun0509/nimbus,dachaoisme/nimbus,dieface/nimbus,kisekied/nimbus,LcongGitHub/nimbus,SuPair/nimbus,kviksilver/nimbus,pilot34/nimbus_fork,Guokr1991/nimbus,SuPair/nimbus,djMax/nimbus,kviksilver/nimbus,pilot34/nimbus_fork,liuwu/nimbus,veue/nimbus,dieface/nimbus,andaluz/nimbus,LcongGitHub/nimbus,djMax/nimbus,mohsinalimat/nimbus,cnbin/nimbus,jverkoey/nimbus,kviksilver/nimbus,bangquangvn/nimbus,treejames/nimbus,cnbin/nimbus,kisekied/nimbus,chanffdavid/nimbus,tranhieutt/nimbus,jverkoey/nimbus,marcobgoogle/nimbus,panume/nimbus,ycaihua/nimbus,hanangellove/nimbus,veue/nimbus,weiyanwu1984/nimbus,weiyanwu1984/nimbus,compositeprimes/nimbus,quyixia/nimbus,bangquangvn/nimbus,Guokr1991/nimbus,xiaohongjun0509/nimbus,Arcank/nimbus,bogardon/nimbus,zaichang/nimbus,chanffdavid/nimbus,mohsinalimat/nimbus,panume/nimbus,dachaoisme/nimbus,DreamHill/nimbus,chanffdavid/nimbus,liuwu/nimbus,Arcank/nimbus,JyHu/nimbus,liuwu/nimbus,djMax/nimbus,michaelShab/nimbus,bogardon/nimbus,zaichang/nimbus,dmishe/nimbus,SuPair/nimbus,treejames/nimbus,compositeprimes/nimbus,bangquangvn/nimbus,dachaoisme/nimbus,JyHu/nimbus,zaichang/nimbus,DreamHill/nimbus,weiyanwu1984/nimbus,pilot34/nimbus_fork,weiyanwu1984/nimbus,bangquangvn/nimbus,ycaihua/nimbus,liuwu/nimbus,Guokr1991/nimbus,chanffdavid/nimbus,cnbin/nimbus,marcobgoogle/nimbus,cnbin/nimbus,mohsinalimat/nimbus,Arcank/nimbus,kviksilver/nimbus,hanangellove/nimbus,Arcank/nimbus,panume/nimbus,dmishe/nimbus,dmishe/nimbus,tranhieutt/nimbus,marcobgoogle/nimbus,JyHu/nimbus,compositeprimes/nimbus,marcobgoogle/nimbus,Arcank/nimbus,JyHu/nimbus,marcobgoogle/nimbus,dieface/nimbus,zaichang/nimbus,treejames/nimbus,dieface/nimbus,kisekied/nimbus,compositeprimes/nimbus,Guokr1991/nimbus,treejames/nimbus,andaluz/nimbus,0xced/nimbus,kisekied/nimbus,kisekied/nimbus,marcobgoogle/nimbus,SuPair/nimbus,bogardon/nimbus,zilaiyedaren/nimbus,jverkoey/nimbus,LcongGitHub/nimbus,0xced/nimbus,hanangellove/nimbus,compositeprimes/nimbus,JyHu/nimbus,djMax/nimbus,quyixia/nimbus,0xced/nimbus,quyixia/nimbus,michaelShab/nimbus,kisekied/nimbus,DreamHill/nimbus,michaelShab/nimbus,Arcank/nimbus,veue/nimbus,ycaihua/nimbus,dmishe/nimbus,zaichang/nimbus,bogardon/nimbus,chanffdavid/nimbus,xiaohongjun0509/nimbus,WeeTom/nimbus,Arcank/nimbus,quyixia/nimbus,panume/nimbus,mohsinalimat/nimbus,xiaohongjun0509/nimbus,andaluz/nimbus,hanangellove/nimbus,zaichang/nimbus,quyixia/nimbus,dachaoisme/nimbus,tranhieutt/nimbus,tranhieutt/nimbus