Gridview buttons "POST" act as "GET" after latest "jquery.pjax.js" composer update

[letsjump]

Yesterday, after the latest jquery.pjax.js update by composer (from version 2.0.6 to 2.0.7) it seems that by clicking on a \yii\grid\ActionColumn button of a yii\grid\GridView, it act as a pjax GET request also if button/link data-method attribute is set as POST.
So, every "delete" button, whose request needs to be "POST" by default yii2 controller behaviour, results as a

"Method Not Allowed (#405) Method Not Allowed. This url can only handle the following request methods: POST"

Gridview button html source is:

<a class="btn btn-default" href="/sale/delete/167" data-pjax="1" data-method="post">
    <span class="glyphicon glyphicon-trash"></span>
</a>

Q	A
Yii2 version	2.0.12
PHP version	7.1.10-1+ubuntu16.04.1+deb.sury.org+1
browser	Firefox 56.0
jquery.pjax.js	2.0.7

[SilverFire]

Reproduced, will be fixed