Stable coordinate conjecture

Let $A$ be a commutative ring with one, let $A^{[n]}$ denote a polynomial ring in $n$ variables over $A$, and let $f\in A^{[n]}$. A polynomial $f$ is a stable coordinate if it is a coordinate in $A^{[n+m]}$ for some $m\in\mathbb{N}$. Stable coordinate conjecture. If $A$ is a $\mathbb{Q}$-algebra and $f$ is a stable coordinate, then $f$ is a coordinate of $A^{[n]}$. The conjecture asks whether stabilization can create coordinates that were not already coordinates. Its status is not resolved in the supplied text.