setAllowScrolling prevents scroll within the scrollable section itself

[alvarotrigo]

Description

When using setAllowScrolling(false) on a section with scrollable content (using the option scrollOverflow: true) then the content on the section itself is not scrollable anymore.

There's no way to disable scrolling between sections but keep the scrollable content scrollable.

Link to isolated reproduction with no external CSS / JS

[Ideally in jsfiddle.net (https://jsfiddle.net/alvarotrigo/ea17skjr) or codepen.io (https://codepen.io/alvarotrigo/pen/NxyPPp), links to personal websites won't be reviewed unless isolated. Reported issues without a reproduction might get closed.]

Steps to reproduce it

1. Scroll Down using the mouse wheel / trackpad (it works)
2. Click on the top button that says "Don't Allow"
3. Try scrolling down using mouse wheel / trackpad (it doesn't work)

Versions

fullPage.js 4.0.19