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User-Agent: Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.4.1)
Gecko/20031114 MultiZilla/1.6.3.1c

Description of problem:
Where are two file:
$ cat file1
1 abc
2 def
3 ghi
4 jkl
$ cat file2
a 123
b 456
c 789
d 248
and my locale is:
$ locale
LANG=zh_CN.GB18030
LC_CTYPE=zh_CN.GB18030
LC_NUMERIC="zh_CN.GB18030"
LC_TIME=en_US.UTF-8
LC_COLLATE="zh_CN.GB18030"
LC_MONETARY="zh_CN.GB18030"
LC_MESSAGES=en_US.UTF-8
LC_PAPER="zh_CN.GB18030"
LC_NAME="zh_CN.GB18030"
LC_ADDRESS="zh_CN.GB18030"
LC_TELEPHONE="zh_CN.GB18030"
LC_MEASUREMENT="zh_CN.GB18030"
LC_IDENTIFICATION="zh_CN.GB18030"
LC_ALL=
then when execute the command as below:
$ cut -d " " -f 1 file1 file2
always gets this result:
1
2
3
4
\n
I think this is a bug of core 1's cut's bug, but not a bug of 
coreutils. Because I download the coreutils from gnu and complie
it, the cut has no this problem.

Version-Release number of selected component (if applicable):
coreutils-5.0-34.1

How reproducible:
Always

Steps to Reproduce:
1.Create two file:
$ cat file1
1 abc
2 def
3 ghi
4 jkl
$ cat file2
a 123
b 456 
c 789
d 248
2.Set the locale to
LANG=zh_CN.GB18030
LC_CTYPE=zh_CN.GB18030
LC_NUMERIC="zh_CN.GB18030"
LC_TIME=en_US.UTF-8
LC_COLLATE="zh_CN.GB18030"
LC_MONETARY="zh_CN.GB18030"
LC_MESSAGES=en_US.UTF-8
LC_PAPER="zh_CN.GB18030"
LC_NAME="zh_CN.GB18030"
LC_ADDRESS="zh_CN.GB18030"
LC_TELEPHONE="zh_CN.GB18030"
LC_MEASUREMENT="zh_CN.GB18030"
LC_IDENTIFICATION="zh_CN.GB18030"
LC_ALL=

3. Execute this command:
$ cut -d " " -f 1 file1 file2
    

Actual Results:  the command give this result
1
2
3
4
\n

Expected Results:  1
2
3
4
a
b
c
d

Additional info:

I think this is a bug of core 1's cut, but not a bug of 
coreutils. Because I download the coreutils from gnu and complie
it, the cut has no this problem.