[Bug] - ListObjectVersions without versioning and --versioning-dir set returns incorrect format

[lrm25]

Describe the bug When versioning is disabled, a ListObjectVersions call direct-to-s3 returns the "versions" in the following format:

<ListVersionsResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
    <Name>versity-gwtest-bucket-luke-four-1</Name>
    <Prefix></Prefix>
    <KeyMarker></KeyMarker>
    <VersionIdMarker></VersionIdMarker>
    <MaxKeys>1000</MaxKeys>
    <IsTruncated>false</IsTruncated>
    <Version>
        <Key>test_file</Key>
        <VersionId>null</VersionId>
        <IsLatest>true</IsLatest>
        <LastModified>2024-10-03T14:29:55.000Z<LastModified>
        <ETag>&quot;af05f4e3ca4b44d207cc0a6c3f8fc90d&quot;</ETag>
        <Size>10</Size>
        <Owner>
            <ID>{id}</ID>
            <DisplayName>{name}</DisplayName>
        </Owner>
        <StorageClass>STANDARD</StorageClass>
    </Version>
</ListVersionsResult>

This same format is returned by versitygw when the --versioning-dir param is set but versioning is disabled. However, when the --versioning-dir param isn't set, the versions are missing.

<?xml version="1.0" encoding="UTF-8"?>
<ListVersionsResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
    <EncodingType></EncodingType>
    <RequestCharged></RequestCharged>
</ListVersionsResult>

To Reproduce

1. Start versitygw without the --versioning-dir parameter set.
2. Create a bucket, and add an object to it.
3. Send the ListObjectVersions command

Expected behavior The same data that is returned when --versioning-dir is set but versioning isn't enabled is returned.

Server Version Version : v1.0.7 Build : c9f77ed BuildTime: 2024-10-01_10:02:21PM Darwin Lukes-MacBook-Pro.local 23.4.0 Darwin Kernel Version 23.4.0: Fri Mar 15 00:12:25 PDT 2024; root:xnu-10063.101.17~1/RELEASE_ARM64_T6030 arm64