Erpnext -Production Planning

I initially created a Sales Order for a quantity of 100. In the Bill of Materials (BOM) associated with this Sales Order,

there are two material items. When I initiated Production Planning with reference to the Sales Order, a Material Request was created.

However, later on, I modified the Sales Order to increase the quantity to 150. When I attempted to re-run Production Planning,

the system should ideally have adjusted the existing Material Request to reflect the changes, creating a new Material Request for the additional quantity.

However, instead of this expected behavior, the system is currently duplicating the original Material Request and creating a new one for the entire quantity, which is not the intended behavior.
I Would be Appreciate can anyone give work around…Thanks