# Adding an invalid tag to a topic creates a whisper post

**URL:** https://meta.discourse.org/t/adding-an-invalid-tag-to-a-topic-creates-a-whisper-post/383286
**Category:** Bug
**Tags:** pr-welcome, tags
**Created:** [September 19, 2025, 1:41pm UTC](https://meta.discourse.org/t/adding-an-invalid-tag-to-a-topic-creates-a-whisper-post/383286 "2025-09-19T13:41:58Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![tvavrda](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/tvavrda/32/480674_2.png) [@tvavrda](https://meta.discourse.org/u/tvavrda)
#### Post date: [September 22, 2025, 6:07am UTC](https://meta.discourse.org/t/adding-an-invalid-tag-to-a-topic-creates-a-whisper-post/383286/3 "2025-09-22T06:07:31Z")

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Not sure if it is technically related but I also found another whisper related issue before.

> [@Changing a tag when "tracked" puts it to Unread for the current user](https://meta.discourse.org/t/changing-a-tag-when-tracked-puts-it-to-unread-for-the-current-user/349000):
>
> Repro steps: Turn on this setting Change a tag of a topic (add/remove) The whisper post is created as expected Go to the homepage Sometimes you need to refresh the brow…

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