Fix bug related to custom elements and ids
When using Cycle custom elements, if they were built with an id (e.g. h('my-button#submit')), the id (e.g. #submit) was missing when the element was rendered on the DOM. This version fixes this bug.
When using Cycle custom elements, if they were built with an id (e.g. h('my-button#submit')), the id (e.g. #submit) was missing when the element was rendered on the DOM. This version fixes this bug.