Fix returning empty text in some cases #575

Job	Run time
Tests alternative autoloader (PHP 7.1)	8s
Tests alternative autoloader (PHP 7.2)	7s
PHPUnit (PHP 7.2)	29s
Tests alternative autoloader (PHP 7.3)	13s
PHPUnit (PHP 7.3)	27s
PHPUnit Composer v2 (PHP 7.4)	36s
Tests alternative autoloader (PHP 7.4)	10s
PHPUnit (PHP 7.4)	26s
Tests alternative autoloader (PHP 8.0)	10s
PHPUnit (PHP 8.0)	33s
PHPUnit coverage (PHP 7.4)	1m 3s
Tests alternative autoloader (PHP 8.1)	10s
PHPUnit (PHP 8.1)	29s
PHPUnit (PHP 7.1)	48s
Tests alternative autoloader (PHP 8.2)	6s
PHPUnit (PHP 8.2)	27s
Tests alternative autoloader (PHP 8.3)	6s
PHPUnit (PHP 8.3)	28s
PHPUnit lowest deps (PHP 7.3)	27s
Windows-Tests with PHP 7.1	1m 16s
Windows-Tests with PHP 7.2	58s
Windows-Tests with PHP 7.3	59s
Windows-Tests with PHP 7.4	58s
Windows-Tests with PHP 8.0	52s
Windows-Tests with PHP 8.1	1m 6s
Windows-Tests with PHP 8.2	48s
Windows-Tests with PHP 8.3	51s
	15m 11s

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