I want to add signature in user profile with my custom group and everything is working until installing hr module .After installed hr module , my field are invisible and my group is not working .Here is my code.
class ResUsers(models.Model):
    _inherit = 'res.users'
    sign_signature = fields.Binary(string="Digital Signature", groups="user_signature.group_signature_sign")
    sign_initials = fields.Binary(string="Digitial Initials", groups="user_signature.group_signature_sign")
    def __init__(self, pool, cr):
        """ Override of __init__ to add access rights.
            Access rights are disabled by default, but allowed
            on some specific fields defined in self.SELF_{READ/WRITE}ABLE_FIELDS.
        """
        init_res = super(ResUsers, self).__init__(pool, cr)
        # duplicate list to avoid modifying the original reference
        type(self).SELF_READABLE_FIELDS = type(self).SELF_READABLE_FIELDS + ['sign_signature','sign_initials']
        type(self).SELF_WRITEABLE_FIELDS = type(self).SELF_WRITEABLE_FIELDS + ['sign_signature','sign_initials']
        return init_res
    
  
Here is my view link https://ibb.co/MR8nMPZ
Here is my screenshot before installing hr link https://ibb.co/zr6T7g0
Here is my screenshot after installinghttps://ibb.co/1vdwNjW
