Adding calculation to field in query adds additional POST entry

Wappler Version : 3.8.1
Operating System : win 10
Server Model: Node
Database Type: Maria DB
Hosting Type: docker

Expected behaviour

What do you think should happen?
Adding calculation should not add additional post variable

Actual behaviour

Additional post variable created when calculation entered into insert

image1477×761 75.7 KB

How to reproduce

See video