Created Unassigned: RichTextBox crashes with OutOfMemoryException when pasting in large image [22346]

I tried pasting in a 4500x3250 image into the RichTextBox, and it crashes. The RichTextBox declared as follows:

```
<toolkit:RichTextBox x:Name="richTextBox"
Grid.Row="1"
Grid.ColumnSpan="2"
Margin="10"
MaxHeight="345"
ScrollViewer.VerticalScrollBarVisibility="Auto"
Text="{Binding CurrentlySelectedNotePage.TextInRTF}">
<toolkit:RichTextBoxFormatBarManager.FormatBar>
<toolkit:RichTextBoxFormatBar />
</toolkit:RichTextBoxFormatBarManager.FormatBar>
</toolkit:RichTextBox>
```

If I try to paste the same image into a standard System.Windows.Controls.RichTextBox, the paste is successful.

And if it isn't possible to paste larger images into the WPF Toolkit RichTextBox, then maybe there should be a more elegant way of handling this?