Description:
------------
The fix to this bug in PHP 7.3.10 seems to have caused a regression: https://bugs.php.net/bug.php?id=41997

The error mentioned in that ticket seems to now be coming up, but triggered in a different way.

I made a repo where you can reproduce this with the help of Docker Compose: https://github.com/amcsi/php7.3.10-pdo-mysql-regression

If you downgrade the PHP version to 7.3.9, the problem goes away.

Test script:
---------------
https://github.com/amcsi/php7.3.10-pdo-mysql-regression/blob/master/example.php

Expected result:
----------------
array(2) {
  [0]=>
  array(1) {
    [0]=>
    string(1) "1"
  }
  [1]=>
  array(1) {
    [0]=>
    string(1) "2"
  }
}

Actual result:
--------------
array(3) {
  [0]=>
  string(5) "HY000"
  [1]=>
  int(2014)
  [2]=>
  string(269) "Cannot execute queries while other unbuffered queries are active.  Consider using PDOStatement::fetchAll().  Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute."
}