As of the last 24 hours we've started getting reports about people getting assigned bugs that don't own the package (this is for fedora). The following bugs are examples: #262461 #261821 At a glance it appears to be related to people searching for component. For example typing se to get to selinux but first getting to seahorse but for some reason when scrolling down and clicking on selinux, the seahorse maintainer is still selected.
#263441 assigned to me, check out the activity history.
This was due to ajax code that was autofilling the assigned to field. The ajax was taking simply too long to update, especially if people selected lots of choices one of the other (clicking in the component select and using the up/down arrow keys for example). We have removed the ajax code so this should be a non-issue now.