Commit e22c77f causes rtorrent/rutorrent to crash when setting torrent file priority to not download

[Antorell]

Hi,
it's commit: e22c77f

I downloaded the latest version by cloning the libtorrent repository, and after I compiled and started rtorrent/libtorrent, rtorrent started to crash when I changed the priority of some files to not download in my rutorrent webUI.

I backtracked libtorrent commits, compiled each commits and the crashes start after this commit e22c77f . If I do a git apply --reverse to remove only this commit using the commit patch on my up to date cloned repository the crashes stop.