toysh segfaults after "clear" or "reset"

[mkmkme]

Hi,

playing with toybox I've found that any command after "clear" or "reset" causes "Double free or corruption". Simple test for this is

echo -e 'clear\nuname -a' | toybox sh
echo -e 'reset\nuname -a' | toybox sh

You can also reproduce this in interactive mode.

Tested with 0.7.4-21-g105595524ead and 0.7.5-58-g1fec45a2a57f

[mkmkme]

Also I cannot test it via '-c' flag. ./toybox sh -c 'clear; ls' causes sh: exec clear;: No such file or directory and ./toybox sh -c 'clear && ls' hangs my terminal.

[enh-google]

works for me at ToT (but toysh is still in pending, so the usual warnings apply...).