Now trimming whitespace correctly when copy pasting. This was removed for drag and drop and was never added again for the clipboard.
Copying multiple lines at a time would also negate the copy paste helper by trimming the line before being passed to the copy paste helper. This has been reversed, try copying an entire window of Visual Studio watch window values and it should properly transform them all.
When copy pasting a bunch of lines, the selection of the row is reset to offset 0 with length 0.