text: Title: Weird stacking auto-complete 
  Body: It happens a lot and is pretty annoying, anyone get this/know a fix?
  
  https://user-images.githubusercontent.com/34655998/153747557-fc8d07f3-78e4-4606-b8f6-415c26a5503d.mp4
  
  Here are my custom environment variables
  ```
  $DOTGLOB = True
  $COMPLETIONS_CONFIRM = False
  $COMPLETION_IN_THREAD = True
  $COMPLETIONS_BRACKETS = False
  $COMPLETIONS_DISPLAY = "single"
  $CASE_SENSITIVE_COMPLETIONS = False
  $AUTO_SUGGEST_IN_COMPLETIONS = True
  $UPDATE_COMPLETIONS_ON_KEYPRESS = True
  $COMMANDS_CACHE_SAVE_INTERMEDIATE = True
  $XONSH_HISTORY_BACKEND = "sqlite"
  $XONSH_HISTORY_FILE = "/home/ganer/.xonsh_history"
  $XONSH_CACHE_EVERYTHING = True
  $XONSH_CTRL_BKSP_DELETION = True
  $UPDATE_PROMPT_ON_KEYPRESS = True
  $XONSH_COLOR_STYLE = 'default'
  $XONSH_STYLE_OVERRIDES['Token.Literal.Number'] = '#1111ff'
  ```
  
  edit: also on a another note, typing backshashes before most characters cause a error to appear in the console