Included template can't be find in the scenario of template inheritance

[lubobill1990]

In the following scenario:

1. a.tpl is parent template
2. b.tpl is child template
3. c.tpl is included by b.tpl with relative path
4. d.tpl is included by b.tpl with relative path

then, smarty 3.1.30@dev will occur the following error:

Unable to load template file '../d.tpl' in 'file:./c.tpl'

[uwetews]

Can you provide your folder structure and some sample template please

[hauke725]

Files:
https://gist.github.com/hauke725/850c993de206dae6f83c439f6fe86114

This won't work if both the included templates are in a subdirectory. When the second include's path is described from the dir of the parent template it works, even if the parent template is not in a resource root.
This problem seems to be occuring since 3.1.28

[uwetews]

The fix is now in the master branch