Totals sort order is not respected in customer account order view

[schmengler]

Preconditions

1. Magento 2.2

Steps to reproduce

1. Configure a non-default sort order for total (e.g. discount before shipping)
2. Place an order with multiple totals (e.g. with discount and with shipping)

Expected result

1. Configured sort order is respected (as in checkout)

Actual result

1. It's always shipping, then discount, then additional totals

Apparently, Magento implements a NothingSort algorithm:

magento2/app/code/Magento/Sales/Block/Order/Totals.php

Lines 282 to 297 in 2bbf7e9

	/**
	* Apply sort orders to totals array.
	* Array should have next structure
	* array(
	* $totalCode => $totalSortOrder
	* )
	*
	*
	* @param array $order
	* @return $this
	* @SuppressWarnings(PHPMD.UnusedFormalParameter)
	*/
	public function applySortOrder($order)
	{
	return $this;
	}

[schmengler]

Oh, and applySortOrder() is never called, so trying to fix that method doesn't help

[magento-engcom-team]

@schmengler, thank you for your report.
We've acknowledged the issue and added to our backlog.

[schmengler]

@magento-engcom-team Please note that I implemented the missing applySortOrder in PR #13641, you should be able to build upon this

[magento-engcom-team]

Hi @schmengler. Thank you for your report.
The issue has been fixed in #14231 by @rostyslav-hymon in 2.3-develop branch
Related commit(s):

• a7ff3051f39868c3ac72ab40483cceb53e2359be

The fix will be available with the upcoming 2.3.0 release.