in IE11 namespaced attributes from instance not merged into model

[MartijnR]

Particularly critical for ordinal attributes. This bug means that ordinals are rebuilt from scratch.

So if you submit this:

<data>
    <repeat enk:last-used-ordinal="3" ordinal="1">
          <a>existing value</a>
    </repeat>
    <repeat ordinal="3">
          <a>another value</a>
    </repeat>
</data>

The model that is created looks like this:

<data>
    <repeat enk:last-used-ordinal="2" ordinal="1">
          <a>existing value</a>
    </repeat>
    <repeat ordinal="2">
          <a>another value</a>
    </repeat>
</data>

So this is CRITICAL because it means data is stored in the wrong db row (ordinal number) and ordinal 2 re-appears after having been deleted previously (and with the wrong data).

[MartijnR]

This is actually regression in mergexml 1.1.1 after all caused by my own PR to fix an earlier ordinal issue in IE11 for OC.

[MartijnR]

hareko/js-merge-xml#14