Error when removing multiple list entries in a single email update.

I have recently been trying to remove multiple list entries at a time via email and the wrong list items are removed. Here is an example:

#1 My Test List
- tagged with @test
* entry0
* entry1
* entry2
* entry3
* entry4
* entry5
* entry6
* entry7
* entry8
* entry9

I reply with:
update #1
-* entry0
-* entry1

The list sandy returns is:
#1 My Test List
- tagged with @test
* entry1
* entry3
* entry4
* entry5
* entry6
* entry7
* entry8
* entry9

Notice that entry0 and entry2 were actually removed. If you want more examples, I can append a longer test case with several updates that all had a similar issue.

Removing multiple items does work correctly if you remove items starting at the end of the list. Using the above list, something like:
update #1
-* entry9
-* entry8

works properly.

Thanks.