# Summary

If I start wpa_supplicant with parameters `-utt` and requesting 
all properties via DBus, wpa_supplicant is hitting the following error:

> bus[19258]: arguments to dbus_message_iter_append_basic() were incorrect, assertion "*bool_p == 0 || *bool_p == 1" failed in file dbus-message.c line 2794.
> This is normally a bug in some application using the D-Bus library.


#Reproducer

Start wpa_supplicant like:
> wpa_supplicant -utt

Request all properties via DBus:
> dbus-send --system --print-reply --dest=fi.w1.wpa_supplicant1 /fi/w1/wpa_supplicant1 org.freedesktop.DBus.Properties.GetAll string:fi.w1.wpa_supplicant1