Fix problems with dynamic templates and ids

[avescodes]

Dynamic templates automatically generate ids for nodes. It uses these generated ids to later update nodes. This is a problem when you want to have a dynamically updated id.

Dynamic templates allow you to specify fields in the template that should be static. These field can only be set once when the template is first added to the DOM. Id fields can be marked as static and set in the this way.

The problem is that a node with a static id field cannot have any other dynamic fields. This is because the id that is set statically is not known at the time when the mapping from ids to fields is created.

We need to allow ids to be added statically but also allow other fields for the same node to be dynamically set.

The starting point for this feature will likely revolve around changing append-field-ids to append to a new attribute (and not the existing fields) one.

[solussd]

hm, this issue should have been closed anyway.

[avescodes]

Should I close it?