At least with recent master towards LO 25.8: In a fresh Writer document, type `x`, "Edit - Select All", "Edit - Copy", "Edit - Paste Special - Paste Special... - HyperText Markup Language (HTML) - OK" reinserts the `x`, but also adds a paragraph break after it. The reason appears to be that the HTML clipboard content generated by LO (as can be seen with something like > diff --git a/sw/source/uibase/dochdl/swdtflvr.cxx b/sw/source/uibase/dochdl/swdtflvr.cxx > index 6d4c5df1b84d..e10bd2be7a15 100644 > --- a/sw/source/uibase/dochdl/swdtflvr.cxx > +++ b/sw/source/uibase/dochdl/swdtflvr.cxx > @@ -821,12 +821,10 @@ bool SwTransferable::WriteObject( SvStream& rOStream, > xWrt->m_bWriteOnlyFirstTable = bool(TransferBufferType::Table & m_eBufferType); > xWrt->SetShowProgress(false); > > -#if defined(DEBUGPASTE) > SvFileStream aPasteDebug( > - u"PASTEBUFFER.debug"_ustr, StreamMode::WRITE|StreamMode::TRUNC); > + u"file:///tmp/PASTEBUFFER.debug"_ustr, StreamMode::WRITE|StreamMode::TRUNC); > SwWriter aDbgWrt( aPasteDebug, *pDoc ); > aDbgWrt.Write( xWrt ); > -#endif > > SwWriter aWrt( rOStream, *pDoc ); > if( ! aWrt.Write( xWrt ).IsError() ) ), namely > <!DOCTYPE html> > <html> > <head> > <meta http-equiv="content-type" content="text/html; charset=utf-8"/> > <title></title> > <meta name="generator" content="LibreOffice 25.8.0.0.alpha0 (Linux)"/> > <style type="text/css"> > @page { size: 8.5in 11in; margin: 0.79in } > p { margin-bottom: 0.1in; line-height: 115%; background: transparent } > </style> > </head> > <body lang="en-US" link="#000080" vlink="#800000" dir="ltr"><p style="line-height: 100%; margin-bottom: 0in"> > x</p> > </body> > </html> ends with a `</p>`. See the code comment in <https://git.libreoffice.org/core/+/325945a544f0b18fb763bfd955e196258cc70eb1%5E%21> "Fix rudimentary Emscripten Qt6 copy -> paste support" for how this affects at least an (experimental, for now) --enable-qt6 Emscripten build: "And for another, <https://github.com/qt/qtbase/commit/f0be152896471aa392bb1b2b649b66feb31480cc> 'wasm: improve clipboard support' also has code to 'prefer html over text' in QWasmClipboard::writeToClipboardApi, so if we reported both 'text/plain' and 'text/html', that code would pick 'text/html', but the HTML provided by LO apparently always contains a trailing '</p>', so would always add a newline when pasted."
Confirm with Version: 25.8.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: db6a6efdc49df054826e9019ebe955282de929a7 CPU threads: 4; OS: Linux 6.8; UI render: default; VCL: gtk3 Locale: he-IL (cs_CZ.UTF-8); UI: en-US Calc: threaded and Version 4.1.0.0.alpha0+ (Build ID: 847749e975a7111ea306909a29fddb5df13e9a7)