Hello,

I am trying to use the ItemFileWriteStore in order to make modifications as well as additions to the data store and have it update a Tree widget on the page. It is mostly working except for when I go to make a second modification to the data store I get an assertion failure as follows:

assertion failed in ItemFileWriteStore
[Break on this error] undefined

Here are the steps I am taking to get this error:
1. I make a modification to one of the attributes (it's not the id) of an item in the data store using setValue().
2. I call save() on the data store
3. I make another modification to an item in the store using setValue()
4. I get the assertion error above from the following line in the _setValueOrValues function:

Here's what I noticed when I get the error:
1. The data store is still in a dirty state after the save() method is finished
2. this._saveInProgress was still true even though I saw it get set to false at the end of the save().

Here is my condensed code:

Am I missing something? Do I need to do something in the _saveEverything method in the data store or the onComplete method that's passed to save() to fix my problem? Thanks in advance.