The web client saved its channel tabs to localStorage whenever the
tabs changed, including on page load, when only the Server tab
exists. That wrote an empty list over the saved one before login
read it, so a new session never rejoined anything. The save now
waits until the user is logged in, and login reads the saved list
before it marks the user logged in.
A MODE message from the server fell through to the Server tab as its
bare body. It now shows in the channel's tab as "alice sets mode
+v bob on #chan".
Model: opus-5-5
sneak