Re-saving index key

Using the LS adapter with Ember Data. On a fresh load, with records already saved in LS:

If I do localStorage.clear() and then save a record, both the record and the index key for that model type are saved to LS. If I repeat clearing and saving, the index key doesn´t save. Is there a way to force the index key to save - presume this is some sort of internal caching issue?

Start by reproducing the behavior described for the LS adapter with records already saved in localStorage, repeating localStorage.clear() followed by a record save. Inspect how the adapter handles the model-type index key; done means both the record and its index key are saved after each repeated clear-and-save cycle.

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