Simplify code after new default version id fallback in ::version

src/Cms/ModelWithContent.php

@@ -416,7 +416,7 @@ public function query(
 	public function readContent(string|null $languageCode = null): array
 	{
 		try {
-			return $this->version(VersionId::default($this))->read($languageCode ?? 'default');
+			return $this->version()->read($languageCode ?? 'default');
 		} catch (NotFoundException) {
 			// only if the content file really does not exist, it's ok
 			// to return empty content. Otherwise this could lead to
@@ -745,14 +745,16 @@ public function version(VersionId|string|null $versionId = null): Version
 	public function writeContent(array $data, string|null $languageCode = null): bool
 	{
 		$data = $this->contentFileData($data, $languageCode);
-		$id   = VersionId::default($this);
+
+		// update the default language, unless a specific language is passed
+		$languageCode ??= 'default';
 
 		try {
 			// we can only update if the version already exists
-			$this->version($id)->update($data, $languageCode ?? 'default');
+			$this->version()->update($data, $languageCode);
 		} catch (NotFoundException) {
 			// otherwise create a new version
-			$this->version($id)->create($data, $languageCode ?? 'default');
+			$this->version()->create($data, $languageCode);
 		}
 
 		return true;

src/Cms/Page.php

@@ -827,7 +827,7 @@ public function modified(
 		string|null $handler = null,
 		string|null $languageCode = null
 	): int|string|false|null {
-		$modified = $this->version(VersionId::default($this))->modified(
+		$modified = $this->version()->modified(
 			$languageCode ?? 'current'
 		);
 

src/Content/ContentTranslation.php

@@ -85,7 +85,7 @@ public function content(): array
 	 */
 	public function contentFile(): string
 	{
-		return $this->contentFile = $this->parent->version(VersionId::default($this->parent))->contentFile($this->code);
+		return $this->contentFile = $this->parent->version()->contentFile($this->code);
 	}
 
 	/**