Regression: nested section loops fail

[bertptrs]

Since the smarty 3.1.28 update, nested section loops (in either a foreach or a section) loops cause an error (undefined index). This is caused by the following line in compiled template code:

$__section_i_0_saved = isset($_smarty_tpl->tpl_vars['__smarty_section_i']) ? $_smarty_tpl->tpl_vars['__section_i'] : false;

The problem arises because the code checks whether '__smarty_section_i' exists and then tries to read '__section_i', without the smarty prefix. It only occurs in nested loops, because isset returns true the second time the loop is evaluated.

PHP version: 5.5.9
Smarty version: 3.1.28

[TAdeJong]

Can confirm from own environment with equal versions of smarty and PHP.

[uwetews]

See #118

Also 3.1.29 is released with the bugfixes