Fix: CSRF check failed

[Rom1-B]

Checklist before requesting a review

Please delete options that are not relevant.

• I have performed a self-review of my code.
• I have added tests (when available) that prove my fix is effective or that my feature works.
• I have updated the CHANGELOG with a short functional description of the fix or new feature.
• This change requires a documentation update.

Description

• It fixes !40368

Avoids a CSRF check error if print is clicked multiple times.

CSRF check failed for User ID: 2 at .../plugins/pdf/ajax/export.php
User ID: `2` tried to execute an invalid request on `/plugins/pdf/ajax/export.php`.

  Backtrace :
  ./src/Session.php:1783                             
  ...ner/ControllerListener/CheckCsrfListener.php:89 Session::checkCSRF()
  .../event-dispatcher/Debug/WrappedListener.php:116 Glpi\Kernel\Listener\ControllerListener\CheckCsrfListener->onKernelController()
  ...ymfony/event-dispatcher/EventDispatcher.php:220 Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke()
  ...symfony/event-dispatcher/EventDispatcher.php:56 Symfony\Component\EventDispatcher\EventDispatcher->callListeners()
  ...spatcher/Debug/TraceableEventDispatcher.php:139 Symfony\Component\EventDispatcher\EventDispatcher->dispatch()
  ./vendor/symfony/http-kernel/HttpKernel.php:169    Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch()
  ./vendor/symfony/http-kernel/HttpKernel.php:76     Symfony\Component\HttpKernel\HttpKernel->handleRaw()
  ./vendor/symfony/http-kernel/Kernel.php:197        Symfony\Component\HttpKernel\HttpKernel->handle()
  ./public/index.php:70                              Symfony\Component\HttpKernel\Kernel->handle()

AND Fixes some SQL errors during export

Screenshots (if appropriate):