clean up

src/Umbraco.Web.UI.Client/src/packages/documents/documents/entity-actions/create/create-document-modal.element.ts

@@ -21,11 +21,14 @@ export class UmbCreateDocumentModalElement extends UmbModalBaseElement<
 	async firstUpdated() {
 		const documentId = this.data?.id || null;
 
-		this.#retrieveAllowedChildrenOf(documentId);
-		this.#retrieveHeadline(documentId);
+		this.#retrieveAllowedDocumentTypesOf(documentId);
+
+		if (documentId) {
+			this.#retrieveHeadline(documentId);
+		}
 	}
 
-	async #retrieveAllowedChildrenOf(id: string | null) {
+	async #retrieveAllowedDocumentTypesOf(id: string | null) {
 		const { data } = await this.#documentRepository.requestAllowedDocumentTypesOf(id);
 
 		if (data) {

src/Umbraco.Web.UI.Client/src/packages/documents/documents/repository/sources/document.server.data.ts

@@ -172,7 +172,6 @@ export class UmbDocumentServerDataSource
 	/**
 	 * Get the allowed document types for root
 	 * @param {string} id
-	 * @return {*}
 	 * @memberof UmbDocumentTypeServerDataSource
 	 */
 	async getAllowedDocumentTypesAtRoot() {
@@ -183,7 +182,6 @@ export class UmbDocumentServerDataSource
 	/**
 	 * Get the allowed document types for a given parent id
 	 * @param {string} id
-	 * @return {*}
 	 * @memberof UmbDocumentTypeServerDataSource
 	 */
 	async getAllowedDocumentTypesOf(id: string) {