Fix long-standing VTKIO bug
Fix long-standing VTKIO bug

Who passes an empty vector to a method expecting a full one.  Who does
that?

Mbewu/libmesh,benkirk/libmesh,BalticPinguin/libmesh,balborian/libmesh,dschwen/libmesh,salazardetroya/libmesh,karpeev/libmesh,jiangwen84/libmesh,aeslaughter/libmesh,permcody/libmesh,dschwen/libmesh,90jrong/libmesh,karpeev/libmesh,svallaghe/libmesh,90jrong/libmesh,giorgiobornia/libmesh,90jrong/libmesh,pbauman/libmesh,BalticPinguin/libmesh,aeslaughter/libmesh,roystgnr/libmesh,coreymbryant/libmesh,capitalaslash/libmesh,capitalaslash/libmesh,dmcdougall/libmesh,cahaynes/libmesh,jwpeterson/libmesh,balborian/libmesh,jwpeterson/libmesh,hrittich/libmesh,jiangwen84/libmesh,benkirk/libmesh,benkirk/libmesh,vikramvgarg/libmesh,dknez/libmesh,Mbewu/libmesh,Mbewu/libmesh,dknez/libmesh,balborian/libmesh,aeslaughter/libmesh,BalticPinguin/libmesh,hrittich/libmesh,hrittich/libmesh,dknez/libmesh,balborian/libmesh,pbauman/libmesh,jwpeterson/libmesh,vikramvgarg/libmesh,jwpeterson/libmesh,libMesh/libmesh,salazardetroya/libmesh,svallaghe/libmesh,karpeev/libmesh,cahaynes/libmesh,90jrong/libmesh,Mbewu/libmesh,libMesh/libmesh,friedmud/libmesh,dschwen/libmesh,BalticPinguin/libmesh,svallaghe/libmesh,benkirk/libmesh,90jrong/libmesh,libMesh/libmesh,giorgiobornia/libmesh,svallaghe/libmesh,svallaghe/libmesh,coreymbryant/libmesh,benkirk/libmesh,roystgnr/libmesh,roystgnr/libmesh,balborian/libmesh,friedmud/libmesh,salazardetroya/libmesh,permcody/libmesh,pbauman/libmesh,friedmud/libmesh,pbauman/libmesh,aeslaughter/libmesh,libMesh/libmesh,vikramvgarg/libmesh,svallaghe/libmesh,hrittich/libmesh,BalticPinguin/libmesh,dmcdougall/libmesh,permcody/libmesh,salazardetroya/libmesh,cahaynes/libmesh,salazardetroya/libmesh,svallaghe/libmesh,jwpeterson/libmesh,aeslaughter/libmesh,jwpeterson/libmesh,coreymbryant/libmesh,capitalaslash/libmesh,Mbewu/libmesh,dmcdougall/libmesh,Mbewu/libmesh,dknez/libmesh,dschwen/libmesh,benkirk/libmesh,roystgnr/libmesh,salazardetroya/libmesh,BalticPinguin/libmesh,aeslaughter/libmesh,jiangwen84/libmesh,friedmud/libmesh,roystgnr/libmesh,giorgiobornia/libmesh,salazardetroya/libmesh,roystgnr/libmesh,giorgiobornia/libmesh,90jrong/libmesh,giorgiobornia/libmesh,Mbewu/libmesh,karpeev/libmesh,cahaynes/libmesh,Mbewu/libmesh,giorgiobornia/libmesh,karpeev/libmesh,vikramvgarg/libmesh,coreymbryant/libmesh,libMesh/libmesh,permcody/libmesh,permcody/libmesh,friedmud/libmesh,jiangwen84/libmesh,benkirk/libmesh,dmcdougall/libmesh,capitalaslash/libmesh,dmcdougall/libmesh,hrittich/libmesh,karpeev/libmesh,aeslaughter/libmesh,pbauman/libmesh,hrittich/libmesh,dknez/libmesh,giorgiobornia/libmesh,friedmud/libmesh,dmcdougall/libmesh,90jrong/libmesh,karpeev/libmesh,cahaynes/libmesh,dschwen/libmesh,vikramvgarg/libmesh,giorgiobornia/libmesh,coreymbryant/libmesh,capitalaslash/libmesh,balborian/libmesh,roystgnr/libmesh,coreymbryant/libmesh,jwpeterson/libmesh,capitalaslash/libmesh,aeslaughter/libmesh,coreymbryant/libmesh,hrittich/libmesh,dmcdougall/libmesh,pbauman/libmesh,jiangwen84/libmesh,cahaynes/libmesh,vikramvgarg/libmesh,90jrong/libmesh,pbauman/libmesh,vikramvgarg/libmesh,balborian/libmesh,friedmud/libmesh,dschwen/libmesh,svallaghe/libmesh,capitalaslash/libmesh,aeslaughter/libmesh,karpeev/libmesh,vikramvgarg/libmesh,coreymbryant/libmesh,dknez/libmesh,benkirk/libmesh,svallaghe/libmesh,permcody/libmesh,permcody/libmesh,hrittich/libmesh,salazardetroya/libmesh,jwpeterson/libmesh,libMesh/libmesh,capitalaslash/libmesh,dschwen/libmesh,balborian/libmesh,roystgnr/libmesh,balborian/libmesh,dknez/libmesh,friedmud/libmesh,dmcdougall/libmesh,BalticPinguin/libmesh,libMesh/libmesh,pbauman/libmesh,jiangwen84/libmesh,Mbewu/libmesh,vikramvgarg/libmesh,balborian/libmesh,dknez/libmesh,jiangwen84/libmesh,cahaynes/libmesh,permcody/libmesh,libMesh/libmesh,dschwen/libmesh,BalticPinguin/libmesh,hrittich/libmesh,benkirk/libmesh,pbauman/libmesh,friedmud/libmesh,giorgiobornia/libmesh,jiangwen84/libmesh,90jrong/libmesh,cahaynes/libmesh