When using extract_right(0) to extract a value from an array the operator returns an empty array (correct) when TemplateCompile is disabled but returns one value from the input array (wrong) when TemplateCompile is enabled.

Steps to reproduce

Set site.ini to:
[TemplateSettings]
TemplateCompile=disabled

Insert the following code into a template:

{def $array = array(1)}
{def $array_part_right = $array|extract_right(0)}

{$array|attribute(show,1)}
{$array_part_right|attribute(show,1)}

Load the page.
Result:

Output of 2 arrays, one with value 1, one with no values.

Now set
TemplateCompile=enabled

Result:

Output of 2 arrays, both with value 1.

This is wrong as extracting 0 values from an array should result in an empty array.