Never hide text for conceal in cursor line.  Do hide when there is
highlighting.
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index cbf0994..acfbf60 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1724,10 +1724,10 @@
 	2		Concealed text is completely hidden unless it has a
 			custom replacement character defined (see
 			|:syn-cchar|.
-	3		Concealed text is completely hidden.  Note: when
-			moving the cursor after concealed items the position
-			will be wrong.
+	3		Concealed text is completely hidden.
 
+	Note: in the cursor line concealed text is not hidden, so that you can
+	edit and copy the text.
 
 				*'confirm'* *'cf'* *'noconfirm'* *'nocf'*
 'confirm' 'cf'		boolean (default off)