google-cloud-go: Bigquery sets expiration Table expiration time to today, even if date is in the future

Client

BigQuery

Describe Your Environment

gLinux

Expected Behavior

Sets Table expiration date to Dec 1st 9999

Actual Behavior

Sets Table expiration date to current timestamp, causing table to be deleted.

Example Code:

package main

import (
        "fmt"
        "time"
        "log"
        "context"
        "cloud.google.com/go/bigquery"
        "encoding/json"
)

func main() {
        ctx := context.Background()
        c, err := bigquery.NewClient(ctx, "snap-tests-217018")
        if err != nil {
                log.Fatal("failed to make client", err)
        }
        d := c.Dataset("testdataset")

        md, err := d.Metadata(ctx)
        if err != nil {
                log.Fatal("failed to get dataset metadata", err)
        }
        bmd, _ := json.MarshalIndent(md, "", "  ")
        log.Println("Datset Metadata", string(bmd))

        t := d.Table("testtable")
        mt, err := t.Metadata(ctx)
        if err != nil {
                log.Fatal("failed to get table metadata", err)
        }
        bmt, _ := json.MarshalIndent(mt, "", "  ")
        log.Println("Table Metadata", string(bmt))

        mt2, err := t.Update(ctx, bigquery.TableMetadataToUpdate{
                Description: fmt.Sprintf("My Table (timestamp - %d)", time.Now().Unix()),
                ExpirationTime: time.Date(3119, time.December, 10, 23, 0, 0, 0, time.UTC),

        }, "")
        if err != nil {
                log.Fatal("Failed to change table metadata", err)
        }
        bmt2, _ := json.MarshalIndent(mt2, "", "  ")
        log.Println("Changed Table Metadata", string(bmt2))
}

(Note output shows Expiration time is not 3119, but current date && no error was thrown)