Self registration broken

[MrTango]

If i enable self registration in Plone and try to use the /register form to register a user, it only works when I'm already logged-in. For anonymous users, an error occurs:

https://localhost:8080/Plone/++api++/@users
[HTTP/3 400  271ms]

error    Object { message: "Error in fields. Property 'Eine Bestätigungs-E-Mail versenden mit einem Link, um das Passwort zu setzen.' is not allowed.", type: "WrongParameterError", errors: […] }
errors    [ {…} ]
0    Object { field: "sendPasswordReset", message: "Property 'Eine Bestätigungs-E-Mail versenden mit einem Link, um das Passwort zu setzen.' is not allowed." }
field    "sendPasswordReset"
message    "Property 'Eine Bestätigungs-E-Mail versenden mit einem Link, um das Passwort zu setzen.' is not allowed."
message    "Error in fields. Property 'Eine Bestätigungs-E-Mail versenden mit einem Link, um das Passwort zu setzen.' is not allowed."
type    "WrongParameterError"

in my opinion, we have to also allow sending sendPasswordReset when self registration is enabled:

        if security.enable_self_reg:
            allowed.append("sendPasswordReset")

[MrTango]

Volto is currently always sending sendPasswordReset = true, this is why self registration is not working at all at the moment.