Fail After 1.17.0

[fadisamara]

After upgrading from 1.16.9 to 1.17.2 this is not working any more:

...{
"name": "Validated",
"description": "No change for this state",
"condition": "wfr.Builder.Validated",
"steps": [...

with this error:

.../go/src/workflow/expr.go:13: type builder.Builder has no field Validated (1:13)
| wfr.Builder.Validated
| ............^

type Builder struct {
Builder builder.Builder
}

type Builder interface {
DB() string
}

type Invoice struct {
ID int64 db:"id" json:",string"
Serial int64 db:"serial"
Date time.Time db:"date"
Validated bool db:"validated"

func (*Invoice) DB() string {
return "his_invoice"
}

if I change to {
"name": "Validated",
"description": "No change for this state",
"condition": "wfr.Builder",
"steps": [.....

I got:
panic: interface conversion: interface {} is *invoice.Invoice, not bool

the
type Builder struct {
Builder builder.Builder
}
is implementing the wfr interface

env := map[string]any{
"wfr": wfr,
}