PHP - Symfony

Changelog (since https://github.com/symfony/symfony/compare/v3.2.7...v3.2.8)

• bug #22550 Allow Upper Case property names in ObjectNormalizer (@insekticid)
• bug #22528 [Asset] Starting slash should indicate no basePath wanted (@weaverryan)
• bug #22568 [EventDispatcher] fix getting priorities of listeners during dispatch (@dmaicher)
• bug #22541 [EventDispatcher] fix: unwrap listeners for correct info (@dmaicher)
• bug #22526 [Asset] Preventing the base path or absolute URL from being prefixed incorrectly (@weaverryan)
• bug #22523 [WebProfilerBundle] Fixed the flickering when loading complex profiler panels (@javiereguiluz)
• bug #21958 [Console] Fix bar width with multilines ProgressBar's format (@maidmaid)
• bug #22435 [Console] Fix dispatching throwables from ConsoleEvents::COMMAND (@nicolas-grekas)
• bug #22478 [Serializer] XmlEncoder: fix negative int and large numbers handling (@dunglas)
• bug #22424 [Debug] Set exit status to 255 on error (@nicolas-grekas)
• bug #22426 [PropertyInfo] Prevent returning int values in some cases (@dunglas)
• bug #22401 Prevent double registrations related to tag priorities (@nicolas-grekas)
• bug #22399 Prevent double registrations related to tag priorities (@nicolas-grekas)
• bug #22396 Prevent double registrations related to tag priorities (@nicolas-grekas)
• bug #22374 [Cache] Remove exception false-positive from FilesystemAdapterTrait (@nicolas-grekas)
• bug #22377 [Console] Allow terminal dimensions to be set to 0 (unbounded) (@duncan3dc)
• bug #22352 [HttpFoundation] Add use_strict_mode in validOptions for session (@sstok)
• bug #22351 [Yaml] don't keep internal state between parser runs (@xabbuh)
• bug #22304 Moved $this->setDate() before the deprecation handling. (@mpdonadio)
• bug #22307 [Debug] Fix php notice (@enumag)
• bug #22311 [DI] Fix second auto-registration (@nicolas-grekas)
• bug #22109 [Validator] check for empty host when calling checkdnsrr() (@apetitpa)
• bug #22280 [DI] Fix the xml schema (@GuilhemN)
• bug #22282 [DI] Prevent AutowirePass from triggering irrelevant deprecations (@chalasr)
• bug #22255 [Translation] avoid creating cache files for fallback locales. (@aitboudad)
• bug #22292 Fixes #22264 - add support for Chrome headless (@redthor)

[PR] https://github.com/symfony/symfony/pull/22601