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Fix Calendar::createInstance double-free of the adopted TimeZone - #23320
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devnexen
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Aug 16, 2026
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this test is kinda of useless, I would suggest to drop it.
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ICU 57+ Calendar::createInstance wraps the TimeZone in a LocalPointer and deletes it when the calendar cannot be created. PHP deleted the same pointer again on that failure. Drop the extra delete in createInstance and fromDateTime.
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ICU 57+ Calendar::createInstance adopts the TimeZone and frees it if the calendar cannot be created. createInstance and fromDateTime deleted that pointer again on failure.