[wireguard-apple] [iOS] Changing network fails with includeAllNetworks (Kill Switch)

[Juraj Hilje]

If NETunnelProviderProtocol is configured with includeAllNetworks=true (Kill Switch), when network change is detected the device connectivity goes offline instead of routing VPN tunnel traffic through a new network.

Here are some logs from the moment of this event:
2021-09-20 12:07:26.735453: [NET] Network change detected with unsatisfied route and interface order [en0, utun4, pdp_ip0]
2021-09-20 12:07:26.736186: [NET] Connectivity offline, pausing backend.
2021-09-20 12:07:26.736732: [NET] Device closing
2021-09-20 12:07:26.737503: [NET] Routine: TUN reader - stopped
2021-09-20 12:07:26.738970: [NET] Routine: event worker - stopped
2021-09-20 12:07:26.739613: [NET] Routine: receive incoming v4 - stopped
2021-09-20 12:07:26.742070: [NET] Routine: receive incoming v6 - stopped
2021-09-20 12:07:26.746712: [NET] peer(eN1f…Oymc) - Stopping
2021-09-20 12:07:26.751550: [NET] peer(eN1f…Oymc) - Routine: sequential receiver - stopped
2021-09-20 12:07:26.751597: [NET] peer(eN1f…Oymc) - Routine: sequential sender - stopped
2021-09-20 12:07:26.753433: [NET] Device closed
2021-09-20 12:07:26.754097: [NET] Routine: decryption worker 5 - stopped

Tested on devices: iOS 14.8, iPadOS 15
WireGuardKit: 79aeb0be0d0aa3f6c8bd24309aaa8dcf03216fb4

More info on includeAllNetworks option:
https://developer.apple.com/documentation/networkextension/nevpnprotocol/3131931-includeallnetworks

Can someone confirm this issue or point to a possible workaround?
Thanks!

Juraj H.