title: Issue with selection-box after changing font-size (fabrics.js, Text)
body: <p>i have come across an annoying bug in my fabric.js-editor:</p>
  
  <p>The selection-box as well as the bounding area (the area you need to click on to select the object) are on the wrong position after changing the font-size of a text-object. (cf. images 1 &amp; 2)</p>
  
  <p>object-selection before:</p>
  
  <p><a href="https://i.stack.imgur.com/VWrWx.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/VWrWx.jpg" alt="enter image description here"></a></p>
  
  <p>object-selection after:</p>
  
  <p><a href="https://i.stack.imgur.com/84dVZ.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/84dVZ.jpg" alt="enter image description here"></a></p>
  
  <p>I would be very glad if someone knew how to fix this.
  Thank you!</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="false" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>canvas.on("object:selected", function(options) {
        document.getElementById("setFontSize").onclick = function handleFontSizeEdit() {
          canvas.getActiveObject().set("fontSize", document.getElementById("fontSize").value);
          canvas.renderAll();
        }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>Font-Size:
  &lt;input type="text" id="fontSize"&gt;
  &lt;input type="submit" id="setFontSize" value="Set"&gt;</code></pre>
  </div>
  </div>
  </p>