how can I trigger a QLI refresh?

I am working in 7.9.4 Pro.

I have a custom onSaveRowEdit() in an extension of ProductBundlesQuoteDataGroupListView.

custom/modules/ProductBundles/clients/base/views/quote-data-group-list/quote-data-group-list.js

When an item is saved, it checks for a related item (I have a custom relate field for that), and if the quantities don't match it updates the quantity on the related item (the item related to the one I just saved has to have the same quantity).

I can update the quantity on the related item successfully but it does not display this new value until after I reload the entire Quote.

I would like to just force the reload of the related item's QLI after the quantity is set. I can't seem to find a way to re-render the one line though, can anyone help?

thanks,
FrancescaS