IllegalArgumentException when pairing mailbox
* Android version: 11 * Phone model: Xiaomi Redmi Not 6 Pro (lineage_twolip) * Briar version: 1.5.3 (1f1a97f) Stacktrace: ``` java.lang.IllegalArgumentException: Invalid URL host: \"[scrubbed].onion\" at okhttp3.HttpUrl$Builder.parse$okhttp(HttpUrl.kt:1338) at okhttp3.HttpUrl$Companion.get(HttpUrl.kt:1634) at okhttp3.Request$Builder.url(Request.kt:184) at org.briarproject.bramble.mailbox.MailboxApiImpl.setup(MailboxApiImpl.java:85) at org.briarproject.bramble.mailbox.MailboxPairingTaskImpl.pairMailbox(MailboxPairingTaskImpl.java:140) at org.briarproject.bramble.mailbox.MailboxPairingTaskImpl.run(MailboxPairingTaskImpl.java:125) at org.briarproject.bramble.mailbox.MailboxManagerImpl.lambda$startPairingTask$0(MailboxManagerImpl.java:97) at org.briarproject.bramble.mailbox.MailboxManagerImpl.$r8$lambda$OqqL4NbxBrCG5gMD-GnzDqowbVk(Unknown Source:0) at org.briarproject.bramble.mailbox.MailboxManagerImpl$$ExternalSyntheticLambda0.run(Unknown Source:4) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) at java.lang.Thread.run(Thread.java:923) ``` I've scrubbed the hostname for privacy, but it was 56 valid-looking chars. Last lines of log: ``` 05-26 22:34:31.304 I/CameraView: Starting preview 05-26 22:34:33.480 I/MailboxViewModel: Got result from decoder 05-26 22:34:33.482 I/MailboxPairingTaskImpl: QR code is valid 05-26 22:34:33.482 I/MailboxViewModel: New pairing state: QrCodeReceived 05-26 22:34:33.484 I/CameraView: Stopping preview ```
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