When I'm using tig to view the changes on a file with tabs in it, it's like the "tabs" are transparent and not getting drawn. I saw similiar corruption though with "make menuconfig" in the kernel so it might well be a bug in ncurses.
Created attachment 555296 [details] emerge --info
I've never seen this so it's probably some ncurses/env bug. Does it occur in 2.4.1 as well?
Closing as obsolete as I can't reproduce in 2.4.1 which is going stable in #700406.