Description:
When I open via remote_files using ssh, regardless of the remote user I specify in the "Remote Files" => "File Services" => Type=SSH pop-up, the open attempts to login first as the user I am logged in as on the local host, and then another user name that I tried earlier and then deleted from the remote_files service. Examining the remote /var/log/auth.log shows that the libreoffice client does not get to try the valid user.


Steps to Reproduce:
Example:
- local user: bill_local
- valid remote user: bill_good
- invalid remote user: bill_bad

1. Setup remote_files ssh service with user bill_bad.

   Attempt open, which will fail.

   Delete remote_files ssh service with user bill_bad.


2. Setup remote_files ssh service with user bill_good.

   Attempt open, which will fail.

Actual Results:
error popup: Nonexistent file

Examine remote:/var/log/auth.log

- see invalid login attempts from bill_local and bill_bad,
  even after deleting the bill_bad service.

- see "Too many authentication failures"
   Sep  5 17:05:38 remote sshd[3916459]: Disconnecting invalid user bill_bad xxx.xxx.xxx.xxx port xxxxx: Too many authentication failures [preauth]

- don't see login attempt for bill_good


Expected Results:
file menu of remote directory


Reproducible: Always


User Profile Reset: No



Additional Info:

Version: 6.0.7.3
Build ID: 1:6.0.7-0ubuntu0.18.04.10
CPU threads: 4; OS: Linux 4.15; UI render: default; VCL: gtk3; 
Locale: en-US (en_US.UTF-8); Calc: group