{
  "train.backup": {
    "name": "Other Assignee",
    "edit": true,
    "view": true,
    "description": "A second person assigned to the task in a backup capacity",
    "caption": "A second person assigned to the task in a backup capacity",
    "type": "users",
    "limit": 1,
    "copy": false,
    "fulltext": true,
    "search": true
  }
}

[2023-08-14 20:21:01] EXCEPTION: (RuntimeException) json_decode(): Passing null to parameter #1 ($json) of type string is deprecated at [<arcanist>/src/error/PhutilErrorHandler.php:261]
arcanist(head=customOAuthUrlencodeNull, ref.master=788098096e11, ref.customOAuthUrlencodeNull=4f0f2043b7e9), phorge(head=customFieldDate, ref.master=bcfcd9acfc12, ref.customFieldDate=ae8cbe84252d)
  #0 <#2> PhutilErrorHandler::handleError(integer, string, string, integer) called at [<arcanist>/src/error/PhutilErrorHandler.php:261]
  #1 <#2> json_decode(NULL, boolean) called at [<phorge>/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldPHIDs.php:44]
  #2 <#2> PhabricatorStandardCustomFieldPHIDs::setValueFromStorage(NULL) called at [<phorge>/src/infrastructure/customfield/field/PhabricatorCustomField.php:895]
  #3 <#2> PhabricatorCustomField::setValueFromApplicationTransactions(NULL) called at [<phorge>/src/infrastructure/customfield/editor/PhabricatorCustomFieldEditField.php:70]
  #4 <#2> PhabricatorCustomFieldEditField::buildControl() called at [<phorge>/src/applications/transactions/editfield/PhabricatorEditField.php:385]
  #5 <#2> PhabricatorEditField::renderControl() called at [<phorge>/src/applications/transactions/editfield/PhabricatorEditField.php:415]
  #6 <#2> PhabricatorEditField::appendToForm(AphrontFormView) called at [<phorge>/src/applications/transactions/controller/PhabricatorEditEngineConfigurationViewController.php:246]
  #7 <#2> PhabricatorEditEngineConfigurationViewController::buildFieldList(PhabricatorEditEngineConfiguration) called at [<phorge>/src/applications/transactions/controller/PhabricatorEditEngineConfigurationViewController.php:40]
  #8 <#2> PhabricatorEditEngineConfigurationViewController::handleRequest(AphrontRequest) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:284]
  #9 phlog(RuntimeException) called at [<phorge>/src/aphront/handler/PhabricatorDefaultRequestExceptionHandler.php:41]
  #10 PhabricatorDefaultRequestExceptionHandler::handleRequestThrowable(AphrontRequest, RuntimeException) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:751]
  #11 AphrontApplicationConfiguration::handleThrowable(RuntimeException) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:296]
  #12 AphrontApplicationConfiguration::processRequest(AphrontRequest, PhutilDeferredLog, AphrontPHPHTTPSink, MultimeterControl) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:203]
  #13 AphrontApplicationConfiguration::runHTTPRequest(AphrontPHPHTTPSink) called at [<phorge>/webroot/index.php:35]
[2023-08-14 20:21:01] EXCEPTION: (PhutilAggregateException) Encountered a processing exception, then another exception when trying to build a response for the first exception.
    - RuntimeException: file_exists(): Passing null to parameter #1 ($filename) of type string is deprecated
    - RuntimeException: json_decode(): Passing null to parameter #1 ($json) of type string is deprecated at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:316]
arcanist(head=customOAuthUrlencodeNull, ref.master=788098096e11, ref.customOAuthUrlencodeNull=4f0f2043b7e9), phorge(head=customFieldDate, ref.master=bcfcd9acfc12, ref.customFieldDate=ae8cbe84252d)
  #0 <#4> json_decode(NULL, boolean) called at [<phorge>/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldPHIDs.php:44]
  #1 <#4> PhabricatorStandardCustomFieldPHIDs::setValueFromStorage(NULL) called at [<phorge>/src/infrastructure/customfield/field/PhabricatorCustomField.php:895]
  #2 <#4> PhabricatorCustomField::setValueFromApplicationTransactions(NULL) called at [<phorge>/src/infrastructure/customfield/editor/PhabricatorCustomFieldEditField.php:70]
  #3 <#4> PhabricatorCustomFieldEditField::buildControl() called at [<phorge>/src/applications/transactions/editfield/PhabricatorEditField.php:385]
  #4 <#4> PhabricatorEditField::renderControl() called at [<phorge>/src/applications/transactions/editfield/PhabricatorEditField.php:415]
  #5 <#4> PhabricatorEditField::appendToForm(AphrontFormView) called at [<phorge>/src/applications/transactions/controller/PhabricatorEditEngineConfigurationViewController.php:246]
  #6 <#4> PhabricatorEditEngineConfigurationViewController::buildFieldList(PhabricatorEditEngineConfiguration) called at [<phorge>/src/applications/transactions/controller/PhabricatorEditEngineConfigurationViewController.php:40]
  #7 <#4> PhabricatorEditEngineConfigurationViewController::handleRequest(AphrontRequest) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:284]
  #8 <#3> PhutilErrorHandler::handleError(integer, string, string, integer) called at [<arcanist>/src/error/PhutilErrorHandler.php:261]
  #9 <#3> file_exists(NULL) called at [<arcanist>/src/filesystem/Filesystem.php:1068]
  #10 <#3> Filesystem::pathExists(NULL) called at [<arcanist>/src/filesystem/Filesystem.php:1169]
  #11 <#3> Filesystem::assertExists(NULL) called at [<arcanist>/src/filesystem/Filesystem.php:1020]
  #12 <#3> Filesystem::isDescendant(NULL, string) called at [<phorge>/src/view/widget/AphrontStackTraceView.php:33]
  #13 <#3> AphrontStackTraceView::render() called at [<phorge>/src/view/AphrontView.php:222]
  #14 <#3> AphrontView::producePhutilSafeHTML() called at [<phorge>/src/infrastructure/markup/render.php:115]
  #15 <#3> phutil_escape_html(AphrontStackTraceView) called at [<phorge>/src/infrastructure/markup/render.php:139]
  #16 <#3> phutil_escape_html(array) called at [<phorge>/src/infrastructure/markup/render.php:97]
  #17 <#3> phutil_tag(string, array, array) called at [<phorge>/src/aphront/handler/PhabricatorDefaultRequestExceptionHandler.php:62]
  #18 <#3> PhabricatorDefaultRequestExceptionHandler::handleRequestThrowable(AphrontRequest, RuntimeException) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:751]
  #19 <#3> AphrontApplicationConfiguration::handleThrowable(RuntimeException) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:296]
  #20 <#2> AphrontApplicationConfiguration::processRequest(AphrontRequest, PhutilDeferredLog, AphrontPHPHTTPSink, MultimeterControl) called at [<phorge>/src/aphront/configuration/AphrontApplicationConfiguration.php:203]
  #21 <#2> AphrontApplicationConfiguration::runHTTPRequest(AphrontPHPHTTPSink) called at [<phorge>/webroot/index.php:35]
  #22 phlog(PhutilAggregateException) called at [<phorge>/src/aphront/response/AphrontUnhandledExceptionResponse.php:32]
  #23 AphrontUnhandledExceptionResponse::setException(PhutilAggregateException) called at [<phorge>/webroot/index.php:46]