`InsertCollection.getDependencies()` is dangerous

[samchon]

When tree structured table comes, InsertCollection.getDependencies() would be fallen into infinite recursive function call.

safe-typeorm/src/transactions/InsertCollection.ts

Lines 152 to 176 in 0f5f2e6

	function getDependencies<T extends object>(
	target: Creator<T>,
	connection?: orm.Connection,
	): Set<Creator<object>> {
	if (!connection) connection = findRepository(target).manager.connection;
	return MapUtil.take(dependencies, target, () => {
	const output: Set<Creator<object>> = new Set();
	for (const meta of connection!.entityMetadatas) {
	const child: Creator<object> = meta.target as Creator<object>;
	if (child === target) continue;
	for (const foreign of meta.foreignKeys)
	if (foreign.referencedEntityMetadata.target === target) {
	output.add(child);
	for (const grand of getDependencies(child, connection))
	output.add(grand);
	break;
	}
	}
	return output;
	});
	}
	const dependencies: WeakMap<Creator<object>, Set<Creator<object>>> = new Map();