PHP message: [2023-08-16 14:52:47] EXCEPTION: (RuntimeException) preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated at [<arcanist>/src/error/PhutilErrorHandler.php:261]; 
PHP message: arcanist(head=master, ref.master=df6c315ace5f), phorge(head=master, ref.master=9fa9aa30b940); 
PHP message:   #0 <#2> PhutilErrorHandler::handleError(integer, string, string, integer) called at [<arcanist>/src/error/PhutilErrorHandler.php:261]; 
PHP message:   #1 <#2> preg_match(string, NULL) called at [<phorge>/src/applications/diffusion/request/DiffusionSvnRequest.php:6]; 
PHP message:   #2 <#2> DiffusionSvnRequest::isStableCommit(NULL) called at [<phorge>/src/applications/diffusion/request/DiffusionRequest.php:342]; 
PHP message:   #3 <#2> DiffusionRequest::getStableCommit() called at [<phorge>/src/applications/diffusion/request/DiffusionRequest.php:272]; 
PHP message:   #4 <#2> DiffusionRequest::getCommit() called at [<phorge>/src/applications/diffusion/controller/DiffusionRepositoryController.php:189]; 
HP message:   #5 <#2> DiffusionRepositoryController::buildNormalContent(DiffusionSvnRequest) called at [<phorge>/src/applications/diffusion/controller/DiffusionRepositoryController.php:101]; 
PHP message:   #6 <#2> DiffusionRepositoryController::handleRequest(AphrontRequest) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:284]; 
PHP message:   #7 phlog(RuntimeException) called at [<phorge>/src/aphront/handler/PhabricatorDefaultRequestExceptionHandler.php:41]; 
PHP message:   #8 PhabricatorDefaultRequestExceptionHandler::handleRequestThrowable(AphrontRequest, RuntimeException) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:751]; 
PHP message:   #9 AphrontApplicationConfiguration::handleThrowable(RuntimeException) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:296];