In Details View, `Typed by` area is not working for update

[alexfournie]

Environment :

• Windows
• Firefox
• Chrome
• 2026.1.0

Steps to reproduce:

• Create 2 Partdefinitions
• Create a Part Usage
• Typed the Part usage with the 2 Part Definitions
• Select the Part Usage
• Open the Detail view
• Go to "Typed By" section
• 1- click on cross on top of any PartDefinition
• 2- click on trash on the right-hand side
• 3- Open the "Edit" (3 dots") menu, the update window is displayed then select a PartDefinition on the right-hand side then click on the "less-than sign" in the middle of the window

Expected behavior:

• 1- The PartDefinition is removed from the "typed by" field and so the PartUsage is no more typed by it
• 2- All PartDefinitions are removed (PartUsage is no more typed)
• 3- The selected PartDefinition is removed from the "typed by" field and so the PartUsage is no more typed by it

Actual behavior:

• 1- nothing is done and a TimeOut error message is displayed
• 2- nothing is done and a TimeOut error message is displayed
• 3- Nothing is done