Kneser–Tits conjecture for simply connected isotropic almost simple groups

Let $k$ be the base field, and let $G$ be a simply connected, almost $k$-simple, $k$-isotropic algebraic group over $k$. Let $G(k)^+$ denote the abstract subgroup of $G(k)$ generated by its unipotent elements. Kneser–Tits conjecture.

$$G(k)^+=G(k).$$

This is the Kneser–Tits generation problem for isotropic algebraic groups: it asks whether the rational points are generated by unipotent elements. The source gives no resolution status for the stated form.