A delayed fatal-error notification from an adapter instance that has
already been replaced by a successful reconnect (a different adapter
object now owns the platform slot) was still processed: it overwrote
the platform's runtime status back to retrying/fatal and could
re-queue an already-healthy platform for reconnection.
Snapshot the current owner of the platform slot at the top of
_handle_adapter_fatal_error and bail out before any side effect when
it belongs to a different, already-installed adapter.
joaomarcos
fb8efbb4a8