Can anyone give an example of when

GetContentIdFromErrorPageConfig

in

NotFoundHandlerHelper

would be called? https://github.com/umbraco/Umbraco-CMS/blob/33adbf41fa1f5c5d0759c70a7116114107addf56/src/Umbraco.Infrastructure/Routing/NotFoundHandlerHelper.cs#L79 Looking to make a pull request for this issue: https://github.com/umbraco/Umbraco-CMS/issues/13958 , fixing

ParseXPathQuery

which also happens to be called from this method.