ethers signs a bool field by whether its value is truthy, so the string "false" was shown as false and signed as true, and a bool field left out was shown as nothing and signed as false. The sign screen now refuses typed data whose message leaves out a declared field, at any level of nesting, or holds a bool that is not true or false: the error line names the field and Sign is disabled. The background refuses a signature for it too. Presence is an own-key test, so a field named like a built-in property such as constructor is not found by accident. signedPrimaryType() moves to the shared module so the background reads the message as the same type. Model: opus-5-5