appendItem doesn't remove a segment from the previous path in Firefox.
appendItem doesn't remove a segment from the previous path in Firefox.

birtles/web-animations-js,beni55/web-animations-js-legacy,birtles/web-animations-js,beni55/web-animations-js-legacy,birtles/web-animations-js,web-animations/web-animations-js-legacy,web-animations/web-animations-js-legacy,beni55/web-animations-js-legacy,beni55/web-animations-js-legacy,web-animations/web-animations-js-legacy