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<?php class Test { protected $attr = null; } var_dump(unserialize('O:4:"Test":1:{s:7:"*attr";N;}'));
Output for git.master, git.master_jit
Notice: unserialize(): Error at offset 26 of 29 bytes in /in/oi4KR on line 8 bool(false)
Output for rfc.property-hooks
Warning: unserialize(): Error at offset 26 of 29 bytes in /in/oi4KR on line 8 bool(false)

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