resources/inspectionDescriptions/ObserverDeclarationInspection.html

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<p>Observer names for events must be unique, otherwise overriding occurs. Overrides can be done by accident.</p>
<p>
    In case overriding is wanted,
    <a href="https://devdocs.magento.com/guides/v2.3/extension-dev-guide/events-and-observers.html#disabling-an-observer">
        disable the original observer
    </a>
    and give a unique name to the current observer.
</p>
<p>
    <a href="https://devdocs.magento.com/guides/v2.3/extension-dev-guide/events-and-observers.html">Read more about Events & Observers</a>
</p>
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