public boolean createsChildrenOf(String parentPath) {
        if ( ! parentPath.endsWith("/")) 
            parentPath = parentPath + "/";
        for (String createdPath : createdPaths)
            if (createdPath.startsWith(parentPath))
                return true;
        return false;
    }
Returns whether the changes include creating any (proper) children of the given path
zkfacade/src/main/java/com/yahoo/vespa/curator/transaction/TransactionChanges.java