Incorrect paragraph spacing

[gimler]

This is:

• a bug report
• a feature request
• not a usage question (ask them on https://stackoverflow.com/questions/tagged/phpword)

Expected Behavior

The line spacing should be 8pt

Current Behavior

The line spacing is 20pt. I found vendor/phpoffice/phpword/src/PhpWord/Style/Paragraph.php:202 it adds the 240 twips that cause the different. But i don't understand why?

Workaround

'spacing' => \PhpOffice\Common\Font::pointSizeToTwips(8) - 240,

How to Reproduce

<?php
require __DIR__ . '/vendor/autoload.php';

$phpWord = new \PhpOffice\PhpWord\PhpWord();

        $section = $phpWord->addSection();
        $section->addText(
            '"Learn from yesterday, live for today, hope for tomorrow. '
            . 'The important thing is not to stop questioning." '
            . '(Albert Einstein)',
            [],
            [
                'spacing' => \PhpOffice\Common\Font::pointSizeToTwips(8),
                'spacingLineRule' => \PhpOffice\PhpWord\SimpleType\LineSpacingRule::EXACT
            ]
        );
       $writer = IOFactory::createWriter($phpWord, 'Word2007');

Context

• PHP version: 7.2.7
• PHPWord version: 0.15

[troosan]

I guess it's because the default line spacing rule is AUTO. When using EXACT or AT_LEAST, those 240 twips (which is the default height of one line) should not be added.