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1
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Greetings!

I noticed error:

"Index was out of range. Must be non-negative and less than size of the collection".


How to reproduce:

You need to have grid with enaugh itms to have a scroll bar. Scroll something or just simply click on it and then press "space". It shows error. It looks like it tries to do something with selection unit, but grid has nothing selected in it (but still focued due to scrollbar activity).