The bug
When shift-clicking an item into the anvil UI, clicking on the text field no longer moves the cursor to the desired location, but instead selects text in the text field.
How to reproduce
Use an anvil
Hold shift and click a tool to transfer it to the anvil
Continue holding shift for a second. Bug does not present if shift is held only briefly.
Release shift key
Click in the name field
→ ❌ Observe the text is selected instead of the cursor moved, as expected
Hi there!
I can confirm for release 1.16.1 and snapshot 20w29a.