Town Upgrade allows you to enter the list after selecting something to upgrade causing the other upgrade to take effect.
Steps to Reproduce:
Select upgrade you want (I did the Tailor)
Contribute the resources to make the upgrade.
Click down on the dpad below the confirm button. It pushes me to the list of upgrades.
Highlight a different upgrade.
Confirm the upgrade that is selected and contributed to (in my case the Tailor)
I see the timer started for the other upgrade