Comment 5 for bug 1446217

It looks like I have even manage to reproduce a problem in way simpler steps:
1. Open Pinta.
2. Ellipse Select.
3. Draw selection on UPPER HALF!!! of the image.
4. Gradient.
5. Click inside selection and draw gradient from left to right.
What happens? Nothing, everything works fine.

Now do we are going to do something very similar:
1. Open Pinta.
2. Ellipse Select.
3. Draw selection on LOWER HALF!!! of the image.
4. Gradient.
5. Click inside selection and draw gradient from left to right.
What happens? Crash.

That is probably why the problem is not always reproducible, because you have to draw selection on bottom half of the cavnas.