nordic 9.1.0: restart VM after advertising causes disconnect and (hard?) restart

[dhalbert]

CircuitPython version

Adafruit CircuitPython 9.1.0 on 2024-07-10; Adafruit Feather nRF52840 Express with nRF52840

Code/REPL

from adafruit_ble import BLERadio
from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
from adafruit_ble.services.nordic import UARTService
import time

ble = BLERadio()
uart = UARTService()
advertisement = ProvideServicesAdvertisement(uart)

while True:
    ble.start_advertising(advertisement)
    while not ble.connected:
        pass

Behavior

code.py output:
Traceback (most recent call last):
  File "code.py", line 13, in <module>
KeyboardInterrupt: 

Code done running.

Press any key to enter the REPL. Use CTRL-D to reload.

Adafruit CircuitPython 9.1.0 on 2024-07-10; Adafruit Feather nRF52840 Express with nRF52840
>>> 

[13:37:44.406] Disconnected
[13:37:45.407] Warning: Could not open tty device (No such file or directory)
[13:37:45.407] Waiting for tty device..
[13:37:47.409] Connected

If these lines are commented out, I don't see the disconnect:

    ble.start_advertising(advertisement)
    while not ble.connected:
        pass

Description

No response

Additional information

No response

[dhalbert]

Same as #9442.