Description:
------------
valid.xml: https://al2k4.s-ul.eu/BGiN0kKt

Reverting back to 7.0.2 will cause XML Reader to read the XML properly.
Version 7.0.3 or higher will cause XML Reader to throw "Input is not proper UTF-8".

Test script:
---------------
<?php
$reader = new XMLReader();
$reader->open("valid.xml");
while($reader->read()) {
}
?>

Expected result:
----------------
No output.

Actual result:
--------------
PHP Warning:  XMLReader::read(): file:/C:/Test/valid.xml:6: parser error : Input is not proper UTF-8, indicate encoding !
Bytes: 0xE2 0x80 0x93 0x20 in C:\Test\test.php on line 5

Warning: XMLReader::read(): file:/C:/Test/valid.xml:6: parser error : Input is not proper UTF-8, indicate encoding !
Bytes: 0xE2 0x80 0x93 0x20 in C:\Test\test.php on line 5
PHP Warning:  XMLReader::read(): f the train station. Open day to be held on Saturday 21st November between 10am  in C:\Test\test.php on line 5

Warning: XMLReader::read(): f the train station. Open day to be held on Saturday 21st November between 10am  in C:\Test\test.php on line 5
PHP Warning:  XMLReader::read():                                                                                ^ in C:\Test\test.php on line 5

Warning: XMLReader::read():                                                                                ^ in C:\Test\test.php on line 5