Fix returning empty text in some cases #574

Job	Run time
PHPUnit coverage (PHP 7.4)	56s
PHPUnit (PHP 7.1)	30s
PHPUnit (PHP 7.2)	46s
PHPUnit (PHP 7.3)	34s
Tests alternative autoloader (PHP 7.1)	27s
PHPUnit (PHP 7.4)	29s
PHPUnit Composer v2 (PHP 7.4)	30s
PHPUnit (PHP 8.0)	30s
Tests alternative autoloader (PHP 7.2)	11s
PHPUnit (PHP 8.1)	35s
Tests alternative autoloader (PHP 7.3)	11s
PHPUnit lowest deps (PHP 7.3)	32s
Tests alternative autoloader (PHP 7.4)	14s
PHPUnit (PHP 8.2)	29s
Tests alternative autoloader (PHP 8.0)	11s
PHPUnit (PHP 8.3)	36s
Tests alternative autoloader (PHP 8.1)	14s
Windows-Tests with PHP 7.1	1m 26s
Tests alternative autoloader (PHP 8.2)	7s
Windows-Tests with PHP 7.2	55s
Tests alternative autoloader (PHP 8.3)	10s
Windows-Tests with PHP 7.3	54s
Windows-Tests with PHP 7.4	54s
Windows-Tests with PHP 8.0	56s
Windows-Tests with PHP 8.1	1m 9s
Windows-Tests with PHP 8.2	1m 1s
Windows-Tests with PHP 8.3	1m 0s
	16m 27s

Provide feedback