[DevExpress Support Team: CLONED FROM T464365: Pasting from Outlook to ASPX files results in tagged text]
When the feature is turned on, the pasting (assuming I want SVG) is not working properly though. If you have selected the text you want to replace with the pasted SVG content, it does not delete the selected text. Rather it pastes the SVG text at the end of the selection. What this means is you have not replaced your originally selected text and next to go back reselect it and then delete it. You may want to correct that.
Matt,
I managed to reproduce this issue on my machine.
We will notify you as soon as we fix it.