[bug] Zen Mode - autosave doesn't work

[svbackend]

Just lost a lot of text because of this =( I thought autosave works doesn't matter how I type, but looks like if I enable "Zen Mode" (aka full screen editor) - and suddenly my cat will decide to close browser tab - after trying to recover it via "ctrl + shift + t" - no luck

so I tested whether it saves progress to localstorage or wherever - and looks like it's not. I would expect it to save progress no matter in which mode I am.

p.s thanks for the awesome editor