[Bug]: Engineers fail to assist shield upgrade is issued while shield is still under construction

[Garanas]

Describe the Bug

When you assist a shield that is under construction with a queued upgrade, the engineers assisting will target the shield instead of the upgrade upon completion. Resources are drained, but no additional progression for the upgrade.

Reproduce the bug

See also:

https://github.com/user-attachments/assets/e592caa5-7096-42a9-9817-1628725c80fc

Screenshots

No response

Additional context

No response