user1@server1:/locdisk/data/a$ touch test
user1@server1:/locdisk/data/a$ ll
rwxrwxrwx 1 user1 user1 1 AUG 30 11:11 ./
rwx------ 1 user1 user1 1 AUG 30 11:11 test
user2@server2:~$ ssh server1
user2@server1:~$ vi /locdisk/data/a/test
And then modify test by 'w!'
user2@server1:~$ ll /locdisk/data/a/
rwxrwxrwx 1 user1 user1 1 AUG 30 11:11 ./
rwx------ 1 user2 user2 3 AUG 30 11:11 test
How could it be??
My Ubuntu has a bug? How should I fix it?