PHPStorm 2016.2.1 / PHPUnit / Declaration

When upgrading to PHPStorm 2016.2.1 I noticed a problem with PHPUnits @covers declaration.
When the @covers declaration doesn't start with backslash it's impossible to go to that declaration.

The following doesn't work anymore; gives a "undefined namespace" on the Module part in the namespace

/**
 * @covers \Namespace\Operations\Module\Operation
 */

The following works fine

/**
 * @covers Namespace\Operations\Module\Operation
 */

This happens for all of my colleagues when upgrading to 2016.2.1. Can someone else please confirm this?

Is this a bug or should the behaviour be that the namespace should always start with a backslash?

PS: Running tests with coverage works fine with both namespaces.