Found on glass. "A URL may never preempt a live session" was enforced inside
the composition — which is the one place that can't see it happen. With
`launchMode = standard` a `punktfunk://` link arrives as a SECOND activity
instance in its own task; that instance's session state is empty, so it
routed the link as a fresh connect, and the streaming task being backgrounded
ended the session it was supposed to protect. The rule held only for the rare
`FLAG_ACTIVITY_SINGLE_TOP` caller that lands on `onNewIntent`.
The live session is now published process-wide, and `onCreate` refuses there
— before this instance is ever resumed, so finishing it leaves the streaming
task in front, untouched. Static state is what crosses the gap between two
activity instances that know nothing about each other; the process dying
resets it, which is also the right answer.
Verified on the emulator against a real host: with a stream up, a link naming
a DIFFERENT host now leaves it running (same session, same HUD, no second
connect) instead of tearing it down.