TextBox auto height incorrectly calculated

When setting the height of a textbox to auto the size is incorrectly calculated if the font you are using has a line spacing greater than 1.

xml:
<font>

  <name>body</name>

  <filename>Inter-Medium.ttf</filename>

  <size>28</size>

  <linespacing>1.2</linespacing>

  <aspect>1.04</aspect>

</font>



<control type="textbox" id="9">

  <height max="800">auto</height>

  <font>body</font>

  <textcolor>white</textcolor>

  <align>center</align>

  <label>Line1[CR]Line2[CR]Line3</label>

  <autoscroll time="3000" delay="4000" repeat="5000">Container(9).HasNext</autoscroll>

</control>

This textbox scrolls even though the text never exceeds the max height of 800. The auto height is calculated too small and Container(9).HasNext returns true.

If I set the linespacing of the font to 1 or lower the size is calculated correctly and Container(9).HasNext returns false until the amount of text exceeds the max height of 800.