wifi_prov_mgr example not erase NVS after first flash

[PabloG]

After carrying out the first test of the example, it does not enter BT mode again to provide new WiFi access credentials. Try all kinds of ways and it doesn't clear NVS memory. I think there is an error in some library. I am using an ESP32-S3DevKit-C1 with IDF-ESP en Visual Code