let hasTouchingRanges = false;
for (let i = 0, count = operations.length - 1; i < count; i++) {
const nextRangeStart = operations[i + 1].range.getStartPosition();
if (nextRangeStart.isBeforeOrEqual(rangeEnd)) {
if (nextRangeStart.isBefore(rangeEnd)) {
// overlapping ranges