Inline comment doesn't work with linewise visual mode

[lilyball]

If I enter linewise visual mode and press <C-_>i for an inline comment, it just comments one character per line instead of commenting the whole line.

The behavior here is consistent with pressing <C-v> to enter blockwise visual mode prior to inserting the comments. What I expected was for the whole line to be commented using the inline style (and if multiple lines are selected, comment them as one inline comment).