Boost: Issue with ConnectNulls when zooming

[NeuwenWolf]

Expected behaviour

Null points should never be connected.

Actual behaviour

In specific circumstances (which I cannot fully pin down), points that are not within the zoomed range (i.e. not visible) are connected.

Live demo with steps to reproduce

http://jsfiddle.net/vd1y2cjx/7/
Zoom in on the two points in Series 2 to see Series 1 connect

Product version

Development version of boost.js
Latest stable of highcharts.js

Affected browser(s)

Only tested in Chrome

Further Comments

It seems you need at least 3 series to make it happen.
You don't need values on either side, here is the edge of a chart where there are no values to the left, but the chart is drawing horizontal null-value lines:

[sebastianbochan]

Hi @NeuwenWolf
Thank you for reporting

Internal note
Looks like similiar issue like #7716

@cvasseng any comments?

[cvasseng]

A fix has been pushed, and is pending merge.

Here's a preview: http://jsfiddle.net/baz8mfLh/

[cvasseng]

Fixed in 6.0.5.