Break lines contextual alternates

[birdland]

I’m afraid there is no satisfying solution, this has been discussed before, for example here:

Calt feature interrupted by line breaks

But you won’t get around line starts. This is where Adobe apps rest their feature context. I don’t think there’s anything you can do in a font to circumvent it. What I have done once is add a hardly used character as zero width glyph (I used micro) and out that one in all cycles. So at the beginning of the line, you could insert a few of these to advance the cycles. But you’ll mess up your text, of course.