This copies the book details panel including all of its markup code to the clipboard - essentially what can be seen in the following screenshot:
I'm not sure what the use case is - but the code behind all the blue values (apart from the Links column) are like this:
Code:
<tr>
<td bgcolor="transparent" style="vertical-align: top">
<p style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; background-color: transparent"><strong style="font-family: 'Segoe UI Mono','Consolas','monospace'; font-size: 13px; background-color: transparent">Publisher:</strong></p></td>
<td bgcolor="transparent" style="vertical-align: top">
<p style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; text-indent: 0px; background-color: transparent"><a href="action:7b227465726d223a20227075626c6973686572222c202276616c7565223a20224a6f686e20486f706b696e7320556e6976657273697479222c20226669656c64223a20227075626c6973686572222c2022626f6f6b5f6964223a203832302c202274797065223a2022736561726368227d"><span style="font-size: 13px; color: #6cb4ee">John Hopkins University</span></a></p></td></tr>
<tr>
I'm at a loss as what one would do with this, apart from paste it into a calibre Long text cell in a book in the same library, but why would you want to do that when you can paste a calibre://book-details link?
IMO it should be be possible to copy something more like this (from the calibre://show-details link labelled Self), i.e. plain text:
The columns that are shown in blue which I've boxed in red are virtual columns, IMO they shouldn't have
a href="blah blah…" coding. Whereas calibre://,
http://, file:/// etc links (i.e. advertised protocols) should retain their
a href="blah blah…" coding.
BR