fix: campaign instantiation without id

[vishalnarkhede]

CLA

• [ ] I have signed the Stream CLA (required).
• [ ] Code changes are tested

Description of the changes, What, Why and How?

Changelog

-

[github-actions[bot]]

Size Change: -228 B (0%)

Total Size: 353 kB

Filename	Size	Change
dist/browser.es.js	76.1 kB	-47 B (0%)
dist/browser.full-bundle.min.js	46.4 kB	-40 B (0%)
dist/browser.js	77.1 kB	-49 B (0%)
dist/index.es.js	76.1 kB	-43 B (0%)
dist/index.js	77.1 kB	-49 B (0%)

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