<blockquote>
<p>That explains why I couldn't spot any difference between the two test runs :-D</p>
</blockquote>
<p>Ideally, this should have been the case even without the rework ^^. <code>if_pid</code> was just not checked (which was 0 before I fixed an error in <a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="472776634" data-permission-text="Issue title is private" data-url="https://github.com/RIOT-OS/RIOT/issues/11912" data-hovercard-type="pull_request" data-hovercard-url="/RIOT-OS/RIOT/pull/11912/hovercard" href="https://github.com/RIOT-OS/RIOT/pull/11912">#11912</a> and thus wrong... that <em>would</em> would have been a difference though <g-emoji class="g-emoji" alias="grinning" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f600.png">😀</g-emoji>)</p>

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