Accordion conflict with sidenav (ver. 7+)

[Knoxvillekm]

Bug, feature request, or proposal:

Bug

What is the current behavior?

Expansion-panel don't open in sidenav by [expanded]="routerLinkActive.isActive", but work fine in other place and in ver. 6+.
After load page can't open expanded panel.

What are the steps to reproduce?

StackBlitz: https://stackblitz.com/edit/angular-v2xdki?file=app%2Fexpansion-overview-example.html

Which versions of Angular, Material, OS, TypeScript, browsers are affected?

Angular: 7.1.0
Material: 7.1.0

[josephperrott]

Closing as duplicate of #13870

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