Remove lines from a double-lined path to become a single-lined path

Question

I' quite new to Inkscape and came across something that I don't quite understand.

I made two simple paths. I tried filling them both, but as it appears, one of the two paths has double lines. This causes the fill to have an effect more similar to a stroke.

This is my "normal" path.

And this is the path in question. I have no idea how it became this way. Is there any way to revert it to a single line?

This is a link to the file, in case that could help.

Answer 1

What happened is most probably that you used Stroke to Path on the double path.

As you paths were rather thin, you can recover a good approximation of the original path quite easily:

1. Select the “double path”.
2. Use Path → Break Apart. You should now have two almost identical shapes.
3. Delete one of the shapes.

4. Make the remaining shape an outline shape instead of a filled shape, for example as follows:

   1. Select a “normal” path.
   2. Copy.
   3. Select the shape.
   4. Paste Style.