/usr/share/checkbox/install/postinst (sourced from the actual postinst) contains the following incorrect ucf usage:
[ -e "$config" ] && ucf $tempfile $config || cp $tempfile $config
resulting in the file not being registered with ucf on initial installation.
/usr/share/ checkbox/ install/ postinst (sourced from the actual postinst) contains the following incorrect ucf usage:
[ -e "$config" ] && ucf $tempfile $config || cp $tempfile $config
resulting in the file not being registered with ucf on initial installation.