[DomCrawler] Remove the overridden getHash() method to prevent problems when cloning the crawler #17748
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Overriding the
SplObjectStorage::getHash()
is affected by a PHP bug, which makes the Crawler unusable in Symfony 2.8 for anyone who relied onSplObjectStorage
methods.Removing the
getHash()
method means we will no longer trigger the deprecation error. Given this method is unlikely to be used directly and otherSplObjectStorage
methods will trigger the error, it is the simplest thing we can do to maintain BC.