FE+BE: allow ❌None as a value in DeviceEdit for fields with other default NEWDEV values

Signed-off-by: jokob-sk <jokob.sk@gmail.com>

server/models/device_instance.py

@@ -590,6 +590,10 @@ class DeviceInstance:
             cur.execute(sql, values)
             conn.commit()
             conn.close()
+
+            mylog("debug", f"[DeviceInstance] setDeviceData SQL: {sql.strip()}")
+            mylog("debug", f"[DeviceInstance] setDeviceData VALUES:{values}")
+
             return {"success": True}
         except Exception as e:
             if conn: