v1.8.0 - Fix test failures (#1022)

* Reverted change to replicationSpecsHashSet which cast region_configs as a slice of interface

* Added oplog_min_retention_hours to cluster advanced configuration schema

Author: evertsd

mongodbatlas/data_source_mongodbatlas_cluster.go

@@ -535,6 +535,11 @@ func clusterAdvancedConfigurationSchemaComputed() *schema.Schema {
 					Type:     schema.TypeInt,
 					Computed: true,
 				},
+				"oplog_min_retention_hours": {
+					Type:     schema.TypeInt,
+					Optional: true,
+					Computed: true,
+				},
 			},
 		},
 	}

mongodbatlas/resource_mongodbatlas_advanced_cluster.go

@@ -1305,7 +1305,7 @@ func replicationSpecsHashSet(v interface{}) int {
 	var buf bytes.Buffer
 	m := v.(map[string]interface{})
 	buf.WriteString(fmt.Sprintf("%d", m["num_shards"].(int)))
-	buf.WriteString(fmt.Sprintf("%+v", m["region_configs"].([]interface{})))
+	buf.WriteString(fmt.Sprintf("%+v", m["region_configs"].(*schema.Set)))
 	buf.WriteString(m["zone_name"].(string))
 	return schema.HashString(buf.String())
 }