#176 Attributes editor problems

Testcase to make sure the Attributes can be set and modified in material receipt candidate

1. Create a purchase order for G000X
   • Add line for Produyct P0001 on TU1
   • Set some attribute values in the ASI of this line
   • Complete the otder

2. Go to its receipt schedules, select the one for the CU product

3. Open the ASI of the schedule
   • => OK: All the attributes that were set in the order are preserved
4. Change an attribute, click somewhere else, click on the attributes again
   • => OK: The attribute you changed has the value you set to it
   • => OK: All the other attributes have values as before

5. Receive HUs, create a material receipt for this candidate

6. Go to the newly created material receipt, to the product line, open advanced editing, check ASI
   • => OK: The attributes are preserved
   • Note: the receipt is completed so the fields of the line are read-only. Might be that the attributes are not all visible on the button. To make sure they were preserved, reactivate the receipt and check again => OK: The attributes are still preserved