Ubuntu 18.10 gnome extensions stop working after hibernation

After upgrading to 18.10 I am experiencing very strange behaviour of gnome extensions. After my laptop goes into hibernation they all switch off and enabling them back on https://extensions.gnome.org/local/ doesn't help: nothing changes and when I refresh the page they are disabled again.

The only way to turn them back on is to reinstall them.

As per GNOME's security policy, whenever you hibernate or suspend or even lock your screen, all of your extensions get disabled automatically until you get back in, and only then the extensions get re-enabled. It seems in your case somehow the re-enabling process is not getting executed properly. This should be considered a bug, consider reporting at launchpad.net.

Also as a workaround after getting back from hibernation / suspension / lock-screen, restart GNOME shell once by pressing Alt+F2 then typing r, and finally pressing Enter, the extensions should start work again.