E013 false positive?

[alexander-akait]

My code:

<div class="col-xs-12 col-sm-6 col-md-4">
    Grid item
</div>
<div class="col-xs-12 col-sm-6 col-md-4">
    Grid item
</div>
<div class="clear visible-sm"></div>
<div class="col-xs-12 col-sm-6 col-md-4">
    Grid item
</div>
<div class="clear visible-md"></div>
<div class="col-xs-12 col-sm-6 col-md-4">
    Grid item
</div>
<div class="clear visible-sm"></div>
<div class="col-xs-12 col-sm-6 col-md-4">
    Grid item
</div>
<div class="col-xs-12 col-sm-6 col-md-4">
    Grid item
</div>
<div class="clear visible-sm"></div>
<div class="clear visible-md"></div>
<div class="col-xs-12 col-sm-6 col-md-4">
    Grid item
</div>
<div class="col-xs-12 col-sm-6 col-md-4">
    Grid item
</div>
<div class="clear visible-sm"></div>
<div class="col-xs-12 col-sm-6 col-md-4">
    Grid item
</div>
<div class="clear visible-md"></div>
<div class="col-xs-12 col-sm-6 col-md-4">
    Grid item
</div>
<div class="clear visible-sm"></div>

I get this code from: twbs/bootstrap#9454

[cvrebert]

I assume you're referring to a "E013: Only columns (.col-*-*) may be children of .rows" error?
Your code has clear instead of the original code's clearfix.

It would be good for the error message to mention that .clearfixes are valid children though.

[alexander-akait]

@cvrebert thanks