El modo TUI de gdb se ha roto en MacOS

Cuando intento desplazar la ventana de origen con las teclas de flecha, las líneas emitidas anteriormente no se sobrescriben correctamente, lo que provoca un aspecto extraño:

Mi ~/.gdbinit sólo contiene set startup-with-shell off .

He instalado gdb por brew install gdb . Aquí está la información de la versión:

[sunqingyao@192.168.0.111 ~/Projects/play_ground]$ gdb --version
GNU gdb (GDB) 8.0
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-apple-darwin16.6.0".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word".

Estoy usando iTerm2 bajo Sierra 10.12.6 (16G29), si es relevante.