<p>
<b petal:omit-tag="string:0">This tag should not be omited (false expr)</b>
<b petal:omit-tag="string:1">This tag should be omited (true expr)</b>
<b petal:omit-tag="">Is this a bug?</b>
</p>
<p>
<b petal:omit-tag="string:0">This tag should not be omited (false expr)</b>
<b petal:omit-tag="string:1">This tag should be omited (true expr)</b>
<b petal:omit-tag="">Is this a bug?</b>
</p>