USB Fido2: PIN not requested if plugged after method selected

[p1gp1g]

Describe the bug If the USB key is plugged after selecting the "Use security key with USB" option, the PIN in not requested. But if the key is plugged before selecting the option, the PIN is correctly requested.

cf. https://codeberg.org/s1m/hw-fido2-provider/issues/2

ping @TheMartinizer because you have implemented it

To Reproduce Steps to reproduce the behavior:

1. Login with a passkey
2. Click on 'Use security key with USB'
3. Plug the USB key

Expected behavior The PIN should be requested

Screenshots A silent error happens, and the screen doesn't return

2025-05-02 18:04:37.258  5790-5790  FidoUsbHandler          s1m.hwfido2provider                  W  org.microg.gms.fido.core.MissingPinException
                                                                                                    	at org.microg.gms.fido.core.transport.TransportHandler.sign$play_services_fido_core_release(TransportHandler.kt:480)
                                                                                                    	at org.microg.gms.fido.core.transport.usb.UsbTransportHandler$sign$2.invokeSuspend(UsbTransportHandler.kt:106)
                                                                                                    	at org.microg.gms.fido.core.transport.usb.UsbTransportHandler$sign$2.invoke(Unknown Source:8)
                                                                                                    	at org.microg.gms.fido.core.transport.usb.UsbTransportHandler$sign$2.invoke(Unknown Source:4)
                                                                                                    	at org.microg.gms.fido.core.transport.usb.ctaphid.CtapHidConnection.open(CtapHidConnection.kt:180)
                                                                                                    	at org.microg.gms.fido.core.transport.usb.ctaphid.CtapHidConnection$open$2.invokeSuspend(Unknown Source:15)
                                                                                                    	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
                                                                                                    	at kotlinx.coroutines.internal.ScopeCoroutine.afterResume(Scopes.kt:32)
                                                                                                    	at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCoroutine.kt:102)
                                                                                                    	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
                                                                                                    	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:108)
                                                                                                    	at androidx.lifecycle.DispatchQueue.drainQueue(DispatchQueue.kt:74)
                                                                                                    	at androidx.lifecycle.DispatchQueue.enqueue(DispatchQueue.kt:111)
                                                                                                    	at androidx.lifecycle.DispatchQueue.dispatchAndEnqueue$lambda$2$lambda$1(DispatchQueue.kt:99)
                                                                                                    	at androidx.lifecycle.DispatchQueue.$r8$lambda$QTUwShsnwO8ux11W0m-zm9OKBq8(Unknown Source:0)
                                                                                                    	at androidx.lifecycle.DispatchQueue$$ExternalSyntheticLambda0.run(D8$$SyntheticClass:0)
                                                                                                    	at android.os.Handler.handleCallback(Handler.java:991)
                                                                                                    	at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                                                    	at android.os.Looper.loopOnce(Looper.java:232)
                                                                                                    	at android.os.Looper.loop(Looper.java:317)
                                                                                                    	at android.app.ActivityThread.main(ActivityThread.java:8973)
                                                                                                    	at java.lang.reflect.Method.invoke(Native Method)
                                                                                                    	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:591)
                                                                                                    	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:927)

System Android Version: 15 Custom ROM: GrapheneOS 15

Additional context

fido-core lib is used by https://codeberg.org/s1m/hw-fido2-provider, not microg directly.