patch: taxonomy path not correct when selected a child and a parent

If you select just the child, the module does its job, creates a path with the full taxonomies. Then, select the root or parent, and also the child. Then the module just returns the path to the parent, not including the child.

Example, select:

-puschairs x
-- all terrain x

The module will just return in the node: puschair/my-title

Select now just the child:

-puschairs
-- all terrain x

Then the path is right:

puschair/all-terrain/my-title

In some scenarios we need to select both, child and parent, and the right path is obviously the full path.