I am a phd student focus on automated testing of complex systems and I selected the Drupal system as a case study. First, I need to examine the bugs recorded for a number of modules in Drupal. Thus, I looked in the issues of each module, e.g. File module https://drupal.org/project/issues/drupal?text=&status=All&priorities=All&categories=1&version=All&component=file.module . But, I noticed that there exist file.module and file.system components in the issues for Drupal. And, this happens with most of Drupal modules. Thus, my question is what is the difference between file.module and file.system in the issues. I need to recorded the bugs associated to each module, so I do not know if a need to consider the bugs of .system components or .module components or both.
Thanks in advance, Best