[php-src] Issue #9699: `DateTimeImmutable::diff` differences on in 8.1.10 onwards

Issue: https://github.com/php/php-src/issues/9699 Author: bendavies ### Description The following code: ```php <?php $date = new DateTimeImmutable('2022-10-09 02:41:54.515330', new DateTimeZone('America/Los_Angeles')); $now = new DateTimeImmutable('2022-10-10 08:41:54.534620', new DateTimeZone('UTC')); var_dump($date->diff($now)); var_dump($date->diff($now)); ``` Resulted in this output: ``` object(DateInterval)#3 (16) { ["y"]=> int(-1) ["m"]=> int(11) ["d"]=> int(30) ["h"]=> int(0) ["i"]=> int(59) ["s"]=> int(59) ["f"]=> float(0.98071) ["weekday"]=> int(0) ["weekday_behavior"]=> int(0) ["first_last_day_of"]=> int(0) ["invert"]=> int(1) ["days"]=> int(0) ["special_type"]=> int(0) ["special_amount"]=> int(0) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) } ``` But I expected this output instead: ``` object(DateInterval)#3 (16) { ["y"]=> int(0) ["m"]=> int(0) ["d"]=> int(0) ["h"]=> int(23) ["i"]=> int(0) ["s"]=> int(0) ["f"]=> float(0.01929) ["weekday"]=> int(0) ["weekday_behavior"]=> int(0) ["first_last_day_of"]=> int(0) ["invert"]=> int(0) ["days"]=> int(0) ["special_type"]=> int(0) ["special_amount"]=> int(0) ["have_weekday_relative"]=> int(0) ["have_special_relative"]=> int(0) } ``` https://3v4l.org/Jam7q ### PHP Version 8.1.10 ### Operating System _No response_