Formula field not update

[zhouyanliang]

Discussed in https://github.com/nocobase/nocobase/discussions/3513

^{Originally posted by pehua February 16, 2024} Hi.

I have created a formula type field to show the combination between the name field and the lastname field from the same table, with the formula.js concatenate({Name},'_',{Last Name}), but it is only updated on creation and upon updating the field is deleted. formula field value.

What am i doing wrong

Thanks