The command 'env TERM=vt320 reset' fails with the message: 'tset: /var/tmp/ncurses-root/usr/share/tabset/vt300: No such file or directory'. 'infocmp vt320' shows that the BuildRoot directory is compiled into the rf field of the terminfo entry for vt320 (and many other terminal types).
Fixed in ncurses-4.2-18.