ArgumentError: There should be as many variables as exponents

[kbarros]

Failure on the last line below seems surprising.

using DynamicPolynomials
@polyvar x y z

subs(x^2, x => z^2) # z⁴
subs(x^2 + y^2, x => z) # z² + y²
subs(x^2 + y^2, x => 1z^2) # y² + z⁴
subs(x^2 + y^2, x => z^2) # ArgumentError: There should be as many variables as exponents

[blegat]

Thanks for reporting this, it should be fixed in #142