The latest Post containing the channel mentions highlighting overrides the individual post's channel mentions highlighting

Description

1. Login as a Channel Member who does not has access to use Channel Mentions.
2. When the channel member uses one of the channel mentions like `@all` or `@here` and sends a post, the channel mention does not gets highlighted.
3. However if a sysadmin sends a post on the same channel containing a channel mention like `@all` or `@here`, all the previous posts of the Channel Member also highlights the channel mentions.

Please check this GIF to demonstrate this issue:

Expected: The channel mentions highlighting should not change

QA Test Steps

See description

Mana

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Assignee

Hossein Ahmadian

QA Assignee

Rohitesh Gupta

Reporter

Rohitesh Gupta

Epic Link

Fix versions

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