How do I get rid of a staged configuration import?
If you export the configuration again current configuration files should be deleted and new ones will be created with the configuration hold in your database.

Anyway you should make a backup first, just in case. You can use drush for this. Use drush archive for a complete backup (including files):

drush ard


Use drush sql-dump to backup only the database:

drush sql-dump &gt; /patch/to/new/file/with/db-dump