in build/src/utils/config.js [430:451]
function createMultiParentBucket(variantParentMap, parentBuckets, dupeBuckets) {
// Get parent of first variant
const parentId = variantParentMap[Object.keys(variantParentMap)[0]];
const firstParentBucket = parentBuckets[parentId] || [parentId];
// Merge other parent buckets into the first parent
for (let currentVariant in variantParentMap) {
const currentParentId = variantParentMap[currentVariant];
if (currentParentId !== parentId) {
const currentParentBucket = parentBuckets[currentParentId];
// Merge buckets if not already merged
if (currentParentBucket && dupeBuckets.indexOf(currentParentId) < 0) {
currentParentBucket.forEach((current) => firstParentBucket.push(current));
} else if (firstParentBucket.indexOf(currentParentId)<0) {
firstParentBucket.push(currentParentId);
}
dupeBuckets.push(currentParentId);
parentBuckets[currentParentId]=firstParentBucket;
}
}
parentBuckets[parentId] = firstParentBucket;
return parentId;
}