I backuped my website with Backup and Migrate. I made some tests and restored a few times successfully.
Then I created some fields (one of them is named field_date), and made some tests; I was not satisfied so I restored again.
Then I wanted to create a field named field_date, which should not be in the database after restore to previous state, but I got the following error message:
DatabaseSchemaObjectExistsException: Table field_data_field_date already exists in DatabaseSchema->createTable() (line 630 of /var/www/includes/database/schema.inc).
How is this possible? None of my backups works to turn the site to the initial state. Is this bug in the module I used for the backup, or is this feature and I should use more reliable backup utility?