error message in selectVariables

[MarthaBernal]

I tried this on M2:

R=QQ[x,y,MonomialOrder=>Lex,Inverses=>true];
selectVariables({0},R)

and obtained as the second output: stdio:12:1:(3): error: Inverses => true not compatible with GRevLex

It seems that selectVariables is not truly keeping the option "MonomialOrder=>Lex" in the subring QQ[x].

[DanGrayson]

Indeed, and in this case, it returns an answer, but the ordering is wrong:

i1 : R=QQ[x,y,z,MonomialOrder=>Lex];

i2 : describe first selectVariables({0,1},R)

o2 = QQ[x..y, Degrees => {2:1}, Heft => {1}, MonomialOrder => {MonomialSize => 32}, DegreeRank => 1]
                                                              {Lex => 0          }
                                                              {Position => Up    }
                                                              {GRevLex => {2:1}  }