Product kits - Virtual stock wrongly calculated and referent objects not shown next to a supplier order

[thibdrev]

Bug

Next to the supplier order of a kit:

• the virtual stock of the simple product composing this kit is wrongly calculated (in tab "product" > "stock").
• the referent objects information are not correctly listed (in tab "product" > "referent objects")

Dolibarr Version

18.0.5 and 19.0.1

Environment PHP

8.0

Environment Database

mariaDB

Steps to reproduce the behavior and expected behavior

1. Create a simple product POMME1.
2. Create a kit product POMME4 made of qty=4 of POMME1
3. Create a supplier order for qty=3 of the kit POMME4 (validate and pass the order)
4. Notice the virtual stocks shown in the STOCK tab:
   • The virtual stock of the kit is correct:
   • The virtual stock of the simple product is NOT correct (it should be 3 * 4 = 12):
5. Receive the order in stocks
6. Notice the real and virtual stocks shown in the STOCK tab:
   • Both real and virtual stocks of the kit are correct:
   • Both real and virtual stocks of the simple product are correct:
7. Notice the supplier orders in the REFERENT OBJECTS tab:
   • The supplier orders info are shown for the kit:
   • The supplier orders info are NOT shown for the simple product: