Well for the same reason as my example, the inner sub is only applied once, so only the second sub is a redefinition.

I didn't find where the fact that a given definition of a sub (except anonymous of course) will only be applied once, no matter how often the scope of its definition is entered (actually I don't think the place where a function is defined matters at all, except for namespace and during compilation), but Lexical Subroutines explains how to create what you might expect (lexically scoped function, with redefinition each time), and so implies that the normal behaviour is different.

In reply to Re^3: Array ending up empty when processing more than a single file by Eily
in thread Array ending up empty when processing more than a single file by TJCooper

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.