When hovering over a bundle and scrolling, vanilla behavior is now to scroll through the items in that bundle.

This scrolling works in both directions, however with ItemScroller enabled you can only scroll in one direction when doing so while having another inventory open (i.e. going through a bundle in the player inventory while having your ender chest open). Scrolling in the other direction will trigger ItemScroller and put the bundle into the other inventory rather than scrolling through the bundle items in the opposite direction.

Maybe a list of item ids that ItemScroller should ignore for scrolling items between inventories would make sense.

Mhm, looks like issues for the newer versions should go into the fork projects. Sorry for the noise, re-opened there: sakura-ryoko#37