IT FRESH-697

#409 MRP Product Info might leave back stale entries after fast changes

Testcase to check if MRP Product Info updates correctly after fast changes.

1. Open MRP Product Info
   • => opens for date of test
2. Set P0001 in Produkt, refresh:
   • => Bestellte Menge and Zusagbar Zählbestand qty: 0 (if it is >0, test with another product that has qty 0 in MRP Product Info)

3. Create a purchase order for G000X, P0001, qty: 100, and DatePromised = date of test

4. Go back to MRP Product Info

5. Set P0001 in Produkt, refresh:
   • => Bestellte Menge and Zusagbar Zählbestand qty: 100

6. Go back to your purchase order, reactivate it

7. Set DatePromised = following day, save and complete

8. In MRP Product Info, go to following day
   • => Bestellte Menge and Zusagbar Zählbestand qty: 100
9. Go back to date of test (use arrows / set date manually):
   • => Bestellte Menge and Zusagbar Zählbestand qty: 0