NAME=dupfd bug
FILE=-
EXPECT=<<EOF
11
EOF
CMDS=<<EOF
e file.nowarn=true
e file.loadmethod=append
e scr.null=true
10o -
e scr.null=false
o~?
EOF
RUN

NAME=dupfd hard
FILE=-
EXPECT=<<EOF
1001
EOF
CMDS=<<EOF
e file.loadmethod=append
e file.nowarn=true
e scr.null=true
1000o -
e scr.null=false
o~?
EOF
RUN
