Try to add a thumbs up character. The version installed at my company will give an error page. The version on this website will show nothing.

https://emojipedia.org/thumbs-up-sign/
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I think is the same as #21398. People posted some workarounds there.
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Test if working on redmine.org: Comment that contains certain Unicode characters can't be saved. Here we are:
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Marco Shima wrote:
> Test if working on redmine.org: Comment that contains certain Unicode characters can't be saved. Here we are:

It was really lost. There was a character `U+1F442` after the "Here we are:" which is lost upon save.
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Duplicate:
- https://www.redmine.org/issues/25116#change-105522
- https://www.redmine.org/issues/11191#change-105521

Mail + Normal post
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Solution: Convert table to utf8mb and set in file database.yml "encoding: utf8mb4"
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Hello, the solution may fix the issue but you could be more precise by giving the required command or sql query to run please.

I think the wiki and other contents should be fixed. So we could apply a conversion to table "issues" and all others ?
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