Can't change a style name in LO Draw

Version Operating system Windows 7.

  1. I create a new style in LibreOffice Draw for my mindmap.
  2. I change the style name that i created. For examle from “Default-1” to “Connector-1”.
  3. Save the file “.odg”.
  4. Reload the file. The style name steal “Default-1”.

In other applications this problem is not appear.

Also, i have a trouble with shortcut “repeat”. I switch a combination from default to “Alt-A” and “Ctrl-A”. I try this with enlgish, russian and german language.