I have done my own (small) part for open source software…
A Perl implementation of Zope’s TAL named Petal recently had an upgrade in features.
This upgrade caused previous (and correct) behavior to not occur.
I emailed their mailing list. (Here’s a link to the post)
about this issue and later submitted a test to demonstrate the incorrect behavior.
The same day, the Petal developers fixed the problem and uploaded a new version to CPAN.
I love Open Source Software!