I found the problem. The elliptical and beizier selections had the
"anti aliasing" option checked(default), which I was not aware of.
When I zoomed on the selection, I could see antialiasing on the
border. It seems that with antialiasing selection, the appearence of a
white or transparent border is expected(This was declared NOTABUG ---
However I wonder how no one else here encountered this!
> I found this exact problem reported before.
> I tried searching through the bugzilla, I found similar problems(bug 22375)
> reported. But I could not find the exact one.
> I use gimp 1.2.3. Has anyone else faced this problem?
> I found a simple way to recreate the problem. Make a ellipse selection in
> an image, choose select->float. Then anchor. A thin elliptical outline is
> ps: This does not happen with rectangular select.
> > I used beizier tool to select part of an image, floated it and named it
> > as a new layer. I then worked on this new layer for some corrections.
> > When I turn on the visibility of both the layers(background and the new
> > layer), I can see a small(approx 1pixel) white outline surrounding the
> > smaller layer. I have not done anything in the layer to change the
> > colors. This does not vanish even if I merge the layers. I do not want
> > the final image to reveal any layer operations I performed. What should
> > I do?