[BUG] Call to a member function warning() on null

[thowlfloen]

Describe the bug
We have thousands of errors like this in our error log since the update yesterday. Apparently caused by bots transferring the wrong or duplicate parameters.

Core: Exception handler (WEB): Uncaught TYPO3 Exception: Call to a member function warning() on null | Error thrown in file /data/www/t3/production/releases/4/vendor/apache-solr-for-typo3/solr/Classes/Search/FacetingComponent.php in line 187. Requested URL: https://site.de/suche/?tx_solr%5Bfilter%5D%5B0%5D=age%3A1years&tx_solr%5Bfilter%5D%5B1%5D=age%3A1years&tx_solr%5Bfilter%5D%5B2%5D=age%3A1years&tx_solr%5Bfilter%5D%5B3%5D=age%3A1years&tx_solr%5Bfilter%5D%5B4%5D=age%3A1years&tx_solr%5Bfilter%5D%5B5%5D=age%3A1years&tx_solr%5Bfilter%5D%5B6%5D=age%3A1years&tx_solr%5Bfilter%5D%5B7%5D=age%3A1years&tx_solr%5Bfilter%5D%5B8%5D=age%3A1years&tx_solr%5Bfilter%5D%5B9%5D=age%3A1years&tx_solr%5Bfilter%5D%5B10%5D=age%3A1years&tx_solr%5Bfilter%5D%5B11%5D=age%3A1years&tx_solr%5Bfilter%5D%5B12%5D=age%3A1years&tx_solr%5Bfilter%5D%5B13%5D=age%3A1years&tx_solr%5Bfilter%5D%5B14%5D=age%3A1years&tx_solr%5Bfilter%5D%5B15%5D=age%3A1years&tx_solr%5Bfilter%5D%5B16%5D=age%3Ayear&tx_solr%5Bpage%5D=15&tx_solr%5Bq%5D=TEST

Used versions (please complete the following information):

• TYPO3 Version: 12.4.23
• Browser: Vivaldi
• EXT:solr Version: 12.0.5
• Used Apache Solr Version: 9.3.0
• PHP Version: 8.3.14
• MariaDB Version: 10.3