added multi-person-favorite sample

[AlexanderHenkel]

Q	A
Bug fix?	no
New sample?	yes
Related issues?

What's in this Pull Request?

This sample let a user add/remove a list item as a favorite, by adding the user name to a multi-person column.

[tecchan1107]

I have done the merge! Please check out the following link and let me know if you have any questions. (I made some minor adjustments when merging.)
https://github.com/pnp/List-Formatting/tree/master/column-samples/multi-person-favorite

Thank you so much for the awesome sample🤩🤩✨

[tecchan1107]

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[BusinessRefinery]

Hello, firstly thanks for putting this together.

I've been using this for a while now. We've just come across an issue where if a staff leaves the organisation (now unlicensed) who has favourited the list item (assume the same applies to any people column) then it errors to add any additional favourites for other users.

Error states - "We couldn't find an exact match". When you remove the former staff member it resolves the issue. So I'm going to have to write a script to bulk remove people from the column.

Have you come across this issue?

[tecchan1107]

Hi @BusinessRefinery .
I will try to verify if I can reproduce this on my end. Also, I will try to see if I can use PowerShell to bulk delete specified users.

[tecchan1107]

Hi @BusinessRefinery .

Sorry for the delay. I was able to reproduce the same phenomenon in my environment. I would like to inform you that I have reported this phenomenon to Microsoft.
SharePoint/sp-dev-docs#9670

[BusinessRefinery]

Thanks @tecchan1107

Glad it isn't just me. Hope MS resolve that one.