fix: state drift from remote_backup field

Author: burythehammer

provider/resource_rediscloud_active_active_database.go

@@ -657,7 +657,11 @@ func resourceRedisCloudActiveActiveDatabaseRead(ctx context.Context, d *schema.R
 			regionDbConfig["override_global_alert"] = pro.FlattenAlerts(regionDb.Alerts)
 		}
 
-		regionDbConfig["remote_backup"] = pro.FlattenBackupPlan(regionDb.Backup, getStateRemoteBackup(d, region), "")
+		// Only set remote_backup if it was configured in state
+		stateRemoteBackup := getStateRemoteBackup(d, region)
+		if len(stateRemoteBackup) > 0 {
+			regionDbConfig["remote_backup"] = pro.FlattenBackupPlan(regionDb.Backup, stateRemoteBackup, "")
+		}
 
 		// Only set enable_default_user if it differs from global (was explicitly overridden)
 		// This prevents drift when region inherits from global (not explicitly set in config)