Well, my problem was seemingly also related to this. And apparently had nothing to do with usr-merge, but instead is a glibc bug. I just settled on deleting /etc/nsswitch.conf and replacing it with a symlink to /usr/etc/nsswitch.conf, cheers 
Well, my problem was seemingly also related to this. And apparently had nothing to do with usr-merge, but instead is a glibc bug. I just settled on deleting /etc/nsswitch.conf and replacing it with a symlink to /usr/etc/nsswitch.conf, cheers