Toggle buttons in recommended filters break on fast multiple clicks

Environment

• OS version: Ubuntu 18.04
• Browser version: Firefox 81, Chrome 85
• Extension version: so far tried on release-2020-1 and ABP 3.9.5
• Last working version: TBD

Steps to reproduce

1. Open "settings" page and "general" tab
2. In the "Recommended Filters"/"Privacy & Security" section (name depends on release version) click multiple times in the toggle/check button of one of the list items (i.e. "Block additional tracking") at a medium speed (~ 500ms per click approx).

Observed behavior

• After 6-18 clicks the toggle button gets stuck on "active" state.
• In the Advanced tab > Filter List table, "Easy Privacy" list (corresponding to "Block additional tracking") doesn't appear.

Expected behavior

• The toggle button shouldn't get stuck.
• The Filter List table should be synced with the subscriptions that are active in "Recommended Filters" / "Privacy & Security" list.

Further information

The issue goes away after refreshing the settings page.

Update: This issue could be fixed if a loading indicator is stablished, as proposed by https://gitlab.com/eyeo/adblockplus/abpui/adblockplusui/-/issues/13.