Sales Order : Grant Commission checkbox not getting value

Hello,

I’ve just noticed the following behavior:

When creating a Sales Order from a submitted Quotation, the value “Grant Commission” (grant_commission) is unchecked on all item lines.

However, if I add an item line manually, the value is correctly set (according to the one defined in the Item record).

Is this the expected behavior? A setting I might have missed? Or a bug?

Thanks in advance for your help!