Assertion failure Zend/zend_hash.c:1543

Description

The following code:

<?php
function Error2Exception($errno, $errstr, $errfile, $errline)
{
throw new MyException($errstr, $errno);
}
set_error_handler('Error2Exception');
function bar(array &$a): ?bool {
foreach ($a as $key => $val) {
if ($val === 2) {
unset($a[$fusion]);
}
}
}
function foo($a, bool $b): bool {
do {
$res = bar($a);
} while ($res === null && $n !== $n2);
}
foo([2,'a'=>5], false);

Resulted in this output:

php: /home/phpfuzz/WorkSpace/flowfusion/php-src/Zend/zend_hash.c:1543: zend_result zend_hash_del(HashTable *, zend_string *): Assertion `(zend_gc_refcount(&(ht)->gc) == 1) || ((ht)->u.flags & (1<<6))' failed.
Aborted (core dumped)

PHP Version

nightly

Operating System

No response

使用提供的 PHP 复现程序针对 nightly build 运行，然后检查 Zend/zend_hash.c 第 1543 行附近以及哈希删除路径。追踪为何会触发 assertion；完成标准是复现程序不再中止，并且该失败有 regression test。