Today while downloading purchases from my account via the app, if the progress-bar is clicked it resets the progress and the download starts over. I realize for a lot of users it's not a big deal, since they probably have very fast internet downloads. I didn't intentionally click on the progress-bar (%), but hit it instead of the view license. For me this is somewhat of a big deal. My internet download speed is 3MBS max. When the download is nearly done after taking about 20 mins, will cause a person to rip their few remaining hairs out of not only there head, but nose and ears too.
I'm sure this is as designed, and not a bug, but should be. It should take an intentional act of telling the app you want to cancel the download or restart it. Not doing so would just pause it or do nothing at all to disrupt it.