Reads from different samples interleave oddly when skipping nodes

[adamnovak]

See Tumor-specific A -> AAAAAAATATATATATATAT INS variant at chr1:86645909 for example. The reads should stay separated by sample even as they skip nodes.

[adamnovak]

It probably has to do with this logic for sorting no-node reads:

sequenceTubeMap/src/util/tubemap.js

Lines 731 to 736 in afaf98b

	elementsWithoutNode.sort(compareNoNodeReadsByPreviousY);
	elementsWithoutNode.forEach((element) => {
	const segment = reads[element.readIndex].path[element.pathIndex];
	segment.y = bottomY[segment.order];
	bottomY[segment.order] += reads[element.readIndex].width;
	});