// Please enter a detailed description of the issue // Description of the issue:

Fenced code blocks are not included when I 'copy rich text'.

As a workaround, I need to make a .rtf file, select all, and copy.

// Please enter a list of steps required to reproduce the issue // Steps to reproduce:

1. make a markdown document with a fenced code block, such as the one attached.
   
2. in marked, select "copy rich text"
   
3. paste into a different app, e.g. a mail compose window. the code block is missing

// If applicable please attach a sample document that causes the issue for you.

// Configuration (do not edit) Marked 2 1027 (Direct)

macOS Version: 11.6

additionalMathJaxConfig:
allowPageBreakInCode: YES
bookTxtIsLeanpub: NO
summaryMdIsGitBook: NO
codeIsPoetry: NO
codeCanWrap: YES
collapsibleHeadlines: NO
convertGithubCheckboxes: YES
convertGithubEmoji: YES
convertYAMLToMMD: NO
defaultMathJaxConfig: TeX-AMS-MML_HTMLorMML
defaultPreviewStyle: 3
defaultProcessor: MultiMarkdown
enableMiniMap: NO
excludeBlockQuotesFromCounts: NO
excludeFootnotesFromCounts: NO
excludeVerbatimFromCounts: NO
excludeCaptionsFromCounts: NO
folderPreviewExtensionsArray: md, markdown, txt, mdown, html, opml
githubNewlines: YES
h1IsPageBreak: NO
h2IsPageBreak: NO
hrIsPageBreak: NO
includeMathJax: YES
includeKatex: NO
limitTextWidth: NO
mathNumberEquations: NO
mathNumberEquationsSide: 0
mathNumberEquationsAMSOnly: NO
minimalJavaScript: NO
outlineModeExtensions:
permissionGranted: NO
printHeaderBottomLeft:
printHeaderBottomRight:
printHeaderFirstPage: NO
printFooterFirstPage: NO
printHeaderTopLeft:
printHeaderTopRight:
processHTMLFiles: YES
removeMetadataForPreview: NO
removeYAMLHeaders: NO
scrollToEdit: YES
shouldDetectCritic: YES
shouldHighlightMarkupErrors: NO
shouldLoadCritic: NO
syntaxHighlight: YES
syntaxHighlightOnlyLang: NO
useCustomMarkdownProcessor: NO
customMarkdownProcessor: /usr/local/bin/rst2html.py
useCustomPreprocessor: NO
customPreprocessor:
useFirstH1AsPrintTitle: YES