Prevent too early sending of delayed notifications.

Notifications for a channel will be sent directly if there are no
pending requests (for this channel). Otherwise notifications are queued
for later sending.

But in two cases a notification could be sent with pending requests:
* Broadcasting a notification
* A channel that has just finished its last pending request
  would call send_delayed_notifications() for all channels.

To prevent this, every channel can now only send its own delayed
notifications and broadcasting checks for pending requests.

0 files changed, 0 insertions, 0 deletions