احصل على "البيانات الخام" لتحديد المستخدم (بدون Markdown)

I understand that quoteState.buffer gets the Markdown text that the user highlights when quoting, and is one of the things passed into the quote-share-buttons-before plugin outlet (accessed by this.args.data.quoteState.buffer). How do I get the raw, unparsed text that the user is highlighting, before it got converted to Markdown? Is it possible to “de-Markdown” the post? Is this possible at all?

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Thanks.