text: Title: Set Library Search Order not working in child suites when used in __init__ file
  Body: There is a bug in Robotframework that when I set the `Set Library Search Order`, it is not honored anymore in the child suites, when I initially set it in a `__init__.robot`
  I use this Search Order with the python remote server:
  ```
  Import Library    Remote   htttp://xxxxx:yyyy  WITH NAME    RemoteLib
  Set Library Search Order    RemoteLib
  ```
  
  Folder structure
  ```
  my_project
  ├── __init__.robot   => "Set Library Search Order " in the `Suite Setup`
  ├── test.robot  => "Library Search Order not set anymore"
  ├── ...
  │   
  ```