Diameter-bounded blow-up conjecture for generalized Turán numbers

Let $G$ be a graph with diameter at most $2r-2$ and chromatic number $\chi(G)<r$. Diameter-bounded blow-up conjecture. The generalized Turán number $\operatorname{ex}(n,G,K_r)$ is asymptotically achieved by a blow-up of $K_{r-1}$. This is proposed as a replacement for the refuted Lidický–Murphy conjecture: bounding the diameter is intended to exclude the obstruction used in the counterexample. The provided text does not state whether this problem has been resolved, so its status remains open.