Overview:

    When an image is placed into the clipboard by certain external applications (Paint.NET, for example) and then pasted into GIMP, the resulting image is cyclically shifted to the right by three pixels.  When pasting the same image into other applications (Microsoft Paint, XnView, for example), there is no problem.

    As a side note, I am developing an image processing application which supports exporting images to the clipboard.  This is how I first noticed the bug in GIMP.  When using my application to place an image into the clipboard and then pasting the image into GIMP, the resulting image is cyclically shifted, but when pasting the image into other applications, the resulting image is properly aligned.

    As far as I can tell, the dimensions of the image do not make any difference.

Steps to Reproduce:

    1) Place an image into the clipboard using Paint.NET (latest version, 3.5.5)

    2) Start GIMP

    3) Paste the image into GIMP using "Edit->Paste" (Ctrl+V)

Actual Results:

    The pasted image is cyclically shifted to the right by three pixels.

Expected Results:

    The pasted image should appear properly aligned.

Build Date & Platform: 

    I don't recall the date, but I first noticed this bug in 2.6.10.  It remains present in 2.6.11.  I am reasonably sure that earlier versions of GIMP did not contain this bug.