Fix metadata/tagging undefined 500 error

[jatindersingh93]

This PR should fix the following error generated:

{"component":"app","level":"error","message":"Cannot read properties of undefined (reading 'metadata')","stack":"TypeError: Cannot read properties of undefined (reading 'metadata')\n    at /opt/app-root/src/app/src/services/metadata.js:213:36\n    at Array.map (<anonymous>)\n    at /opt/app-root/src/app/src/services/metadata.js:210:30\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async Object.fetchMetadata (/opt/app-root/src/app/src/controllers/object.js:624:24)","timestamp":"2024-01-05T21:25:44.042Z"}
{"azp":"bc-box-4555","httpVersion":"1.1","ip":"::ffff:10.97.65.112","level":"http","message":"GET /api/v1/object/metadata 500 97ms","method":"GET","path":"/api/v1/object/metadata","responseTime":97,"statusCode":500,"timestamp":"2024-01-05T21:25:44.043Z","userAgent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:121.0) Gecko/20100101 Firefox/121.0"}
{"contentLength":"225","httpVersion":"1.1","ip":"::ffff:10.97.137.99","level":"http","message":"GET / 200 0ms","method":"GET","path":"/","responseTime":0,"statusCode":200,"timestamp":"2024-01-05T21:25:44.256Z","userAgent":"Mozilla/5.0+(compatible; UptimeRobot/2.0; http://www.uptimerobot.com/)"}
{"component":"app","level":"error","message":"Cannot read properties of undefined (reading 'tag')","stack":"TypeError: Cannot read properties of undefined (reading 'tag')\n    at /opt/app-root/src/app/src/services/tag.js:264:34\n    at Array.map (<anonymous>)\n    at /opt/app-root/src/app/src/services/tag.js:261:30\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async Object.fetchTags (/opt/app-root/src/app/src/controllers/object.js:653:24)","timestamp":"2024-01-05T21:25:44.382Z"}
{"azp":"bc-box-4555","httpVersion":"1.1","ip":"::ffff:10.97.65.112","level":"http","message":"GET /api/v1/object/tagging 500 34ms","method":"GET","path":"/api/v1/object/tagging","responseTime":34,"statusCode":500,"timestamp":"2024-01-05T21:25:44.383Z","userAgent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:121.0) Gecko/20100101 Firefox/121.0"}

Description

Types of changes

Checklist

• I have read the CONTRIBUTING doc
• I have checked that unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Further comments

[codeclimate]

Code Climate has analyzed commit 72ec9a0 and detected 2 issues on this pull request.

Here's the issue category breakdown:

Category	Count
Duplication	2

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 65.8% (0.0% change).

View more on Code Climate.

[github-actions]

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