Bugfix: Fix rare failures to retry locking a repository Restic 0.17.0 could in rare cases fail to retry locking a repository if one of the lock files failed to load. The lock operation failed with error `unable to create lock in backend: circuit breaker open for file ` The error handling has been fixed to correctly retry locking the repository. In addition, restic now waits a few seconds between locking retries to increase chances of success. https://github.com/restic/restic/issues/5005 https://github.com/restic/restic/pull/5011 https://github.com/restic/restic/pull/5012