The following exception is raised on an attempt to register a custom question based on 'imagepicker' - Failed to execute 'querySelector' on 'Element': The provided selector is empty.

[JaneSjs]

User Issue: T14346 - App crash when adding custom question in latest version
https://surveyjs.answerdesk.io/internal/ticket/details/T14346

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When adding a custom 'photo' question which inherits from the 'imagepicker', the following exception is thrown:

react-dom.development.js:12056 Uncaught DOMException: Failed to execute 'querySelector' on 'Element': The provided selector is empty.
    at ./src/question_imagepicker.ts.QuestionImagePickerModel.afterRender (https://r2ywnh.csb.app/node_modules/survey-core/survey.core.js:34269:22)
    at ./src/react/reactquestion.tsx.SurveyQuestion.doAfterRender (https://r2ywnh.csb.app/node_modules/survey-react-ui/survey-react-ui.js:5703:35)
    at ./src/react/reactquestion.tsx.SurveyQuestion.componentDidMount (https://r2ywnh.csb.app/node_modules/survey-react-ui/survey-react-ui.js:5674:14)
    at commitLayoutEffectOnFiber (https://r2ywnh.csb.app/node_modules/react-dom/cjs/react-dom.development.js:23305:30)
    at commitLayoutMountEffects_complete (https://r2ywnh.csb.app/node_modules/react-dom/cjs/react-dom.development.js:24688:9)
    at commitLayoutEffects_begin (https://r2ywnh.csb.app/node_modules/react-dom/cjs/react-dom.development.js:24674:7)
    at commitLayoutEffects (https://r2ywnh.csb.app/node_modules/react-dom/cjs/react-dom.development.js:24612:3)
    at commitRootImpl (https://r2ywnh.csb.app/node_modules/react-dom/cjs/react-dom.development.js:26823:5)
    at commitRoot (https://r2ywnh.csb.app/node_modules/react-dom/cjs/react-dom.development.js:26682:5)
    at performSyncWorkOnRoot (https://r2ywnh.csb.app/node_modules/react-dom/cjs/react-dom.development.js:26117:3)
    at flushSyncCallbacks (https://r2ywnh.csb.app/node_modules/react-dom/cjs/react-dom.development.js:12042:22)
    at eval (https://r2ywnh.csb.app/node_modules/react-dom/cjs/react-dom.development.js:25651:13)