Fulfilment no longer possible when all items have been reserved

[GenuineGuineapig]

trafficstars

Bug report

Describe the bug

When all items have been reserved, fulfilment is no longer possible, as I cannot select the needed (but in the order reserved) amount.

System information

Medusa version (including plugins): 1.20.10 (Medusa), 7.1.17 (Medusa Admin), 1.11.7 (Medusa Inventory), 1.11.6 (Medusa Stock Location), 1.1.41 (Fulfilment Manual) Node.js version: v22.9.0 Database: PostgreSQL Operating system: Debian

Steps to reproduce the behavior

1. Seed backend with demo data, setup stock locations
2. Place order which reserves all stock of an item
3. Try to fulfil order in backend

Expected behavior

I should be able to fulfil this order.

Screenshots

(The location is selected)

Additional context

This shop does not ship, but instead people pick up the order themselves. Therefore I've used manual fulfilment from the start, which does pretty much everything I want. However, I think that this is not a problem within the fulfilment plugin, as I cannot see where that check would occur.