On-site funds can sell orders when they fall below the limit, but it is not certain whether they can clinch a deal.
In fact, under normal circumstances, the probability of the fund's limit is still very low. Unless it is a fund that invests in derivatives or commodities.
Ordinary stock funds and hybrid funds will not take all the stocks away, there is no systematic risk, and the stocks will not all fall, so the probability of falling is not high.