What happens if an increase in price occurs during the option period after a sale is agreed upon?

Primary text

If an increase in price occurs during the option period before the contract becomes binding, the appointed trustee is obligated to cancel the sale, as the item could have been sold for the higher price, and selling it without that increase is not permissible, similar to an increase before the contract was originally made. If the increase occurs after the contract is binding, it is recommended that the trustee ask the buyer for rescission (iqalah), and the buyer should agree, as this serves the interest of the bankrupt in settling his debt.