@Override
	public boolean isCheckedOut() {
		if (isVersioned) {
			throw new UnsupportedOperationException(
				"isCheckedOut is not applicable to versioned item");
		}
		return (getCheckoutId() != DEFAULT_CHECKOUT_ID);
	}
@see ghidra.framework.store.FolderItem#isCheckedOut()
Ghidra/Framework/FileSystem/src/main/java/ghidra/framework/store/local/LocalFolderItem.java