[scaladoc] Don't generate long comments if they...

[scaladoc] Don't generate long comments if they are the same as the
short comment. Closes #4455. No review.

1 files changed, 9 insertions, 4 deletions

diff --git a/src/compiler/scala/tools/nsc/doc/html/page/Template.scala b/src/compiler/scala/tools/nsc/doc/html/page/Template.scala
index f7d7b95844..cd733ced9a 100644
--- a/src/compiler/scala/tools/nsc/doc/html/page/Template.scala
+++ b/src/compiler/scala/tools/nsc/doc/html/page/Template.scala
@@ -208,10 +208,15 @@ class Template(tpl: DocTemplateEntity) extends HtmlPage {
         if (commentBody.isEmpty)
           NodeSeq.Empty
         else {
-          <xml:group>
-            { memberToShortCommentHtml(mbr, isSelf) }
-            <div class="fullcomment">{ memberToUseCaseCommentHtml(mbr, isSelf) }{ memberToCommentBodyHtml(mbr, isSelf) }</div>
-          </xml:group>
+          val shortComment = memberToShortCommentHtml(mbr, isSelf)
+          val longComment = memberToUseCaseCommentHtml(mbr, isSelf) ++ memberToCommentBodyHtml(mbr, isSelf)
+
+          val includedLongComment = if (shortComment.text.trim == longComment.text.trim)
+            NodeSeq.Empty
+          else
+            <div class="fullcomment">{ longComment }</div>
+
+          shortComment ++ includedLongComment
         }
     }
   }