[HttpFoundation] Fix forward-compat of NativeSessionStorage with PHP 7.2#24531

Merged

nicolas-grekas merged 1 commit intosymfony:2.7from

sroze:native-storage-and-php72

Nov 5, 2017

Commits on Nov 5, 2017

[HttpFoundation] Fix forward-compat of NativeSessionStorage with PHP 7.2

sroze
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nicolas-grekas
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