https://bugs.launchpad.net/calibre-k...r/+bug/1204504
In general, if you go to file a bug and type in a brief summary (a short sentence, or a few words) you'll get a list of bugs that may be the same as what you're trying to report. The search box on the list of bugs only searches "open" bugs (unless you go into the Advanced Search), the search when reporting a bug includes all bugs by default.
So, if you're worried that you're putting something out there that's weird, you can go try to report a bug and see if it's already reported. If it is, you can indicate that it also affects you and toss in your two cents. If not, you can come here as usual, or report the bug on Launchpad. And regardless, searching for bugs is a good idea anyway