Fix randomly failing TestSQLRepositoryVersioning.testRestoreToVersion

Failed to restore document SQLDocumentLive(file#456,60233e10-9681-41e1-8bd2-b5ac677bbcf9)
Stacktrace
org.nuxeo.ecm.core.api.ClientException: Failed to restore document SQLDocumentLive(file#456,60233e10-9681-41e1-8bd2-b5ac677bbcf9)
	at org.nuxeo.ecm.core.api.AbstractSession.restoreToVersion(AbstractSession.java:2252)
	at org.nuxeo.ecm.core.api.AbstractSession.restoreToVersion(AbstractSession.java:2146)
	at org.nuxeo.ecm.core.storage.sql.TestSQLRepositoryVersioning.testRestoreToVersion(TestSQLRepositoryVersioning.java:322)
Caused by: org.nuxeo.ecm.core.api.DocumentException: org.nuxeo.ecm.core.storage.StorageException: Could not copy: f3269b6a-020f-4269-888d-3d48d24a8051
	at org.nuxeo.ecm.core.storage.sql.coremodel.SQLSession.restore(SQLSession.java:897)
	at org.nuxeo.ecm.core.storage.sql.coremodel.SQLDocumentLive.restore(SQLDocumentLive.java:457)
	at org.nuxeo.ecm.core.api.AbstractSession.restoreToVersion(AbstractSession.java:2232)
	... 31 more
Caused by: org.nuxeo.ecm.core.storage.StorageException: Could not copy: f3269b6a-020f-4269-888d-3d48d24a8051
	at org.nuxeo.ecm.core.storage.sql.jdbc.JDBCRowMapper.copy(JDBCRowMapper.java:1055)
	at org.nuxeo.ecm.core.storage.sql.SoftRefCachingRowMapper.copy(SoftRefCachingRowMapper.java:484)
	at org.nuxeo.ecm.core.storage.sql.PersistenceContext.restoreVersion(PersistenceContext.java:1580)
	at org.nuxeo.ecm.core.storage.sql.SessionImpl.restore(SessionImpl.java:1122)
	at org.nuxeo.ecm.core.storage.sql.coremodel.SQLSession.restore(SQLSession.java:895)
	... 33 more
Caused by: java.sql.SQLIntegrityConstraintViolationException: ORA-00001: unique constraint (MADHATTER.FULLTEXT_PK) violated