[Bug 3764] New: scp deletes file when copying to localhost

[bugzilla-daemon at mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=3764

            Bug ID: 3764
           Summary: scp deletes file when copying to localhost
           Product: Portable OpenSSH
           Version: 8.7p1
          Hardware: amd64
                OS: Linux
            Status: NEW
          Severity: minor
          Priority: P5
         Component: scp
          Assignee: unassigned-bugs at mindrot.org
          Reporter: ryman559 at hotmail.com

Copying files locally like so causes the file to be deleted. This

$ ls -lart /tmp/a.txt
-rw-r--r-- 1 user build 7 Dec  9 11:34 /tmp/a.txt
$ scp `whoami`@`hostname`:/tmp/a.txt `whoami`@`hostname`:/tmp/a.txt
a.txt                                                                  
                                                                       
                                                                       
                        0%    0     0.0KB/s   --:-- ETA
$ ls -lart /tmp/a.txt
-rw-r--r-- 1 user build 0 Dec  9 11:35 /tmp/a.txt

Note this behaviour is not seen when using -O, so could be a regression
with the move to SFTP

$ ls -lart /tmp/a.txt
-rw-r--r-- 1 user build 17 Dec  9 11:35 /tmp/a.txt
$ scp -O `whoami`@`hostname`:/tmp/a.txt `whoami`@`hostname`:/tmp/a.txt
$ ls -lart /tmp/a.txt
-rw-r--r-- 1 user build 17 Dec  9 11:36 /tmp/a.txt

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