Org reader: convert markup at beginning of footnotes

Closes: #3576

src/Text/Pandoc/Readers/Org/Blocks.hs

@@ -869,7 +869,7 @@ latexEnd envName = try $
 --
 noteBlock :: PandocMonad m => OrgParser m (F Blocks)
 noteBlock = try $ do
-  ref <- noteMarker <* skipSpaces
+  ref <- noteMarker <* skipSpaces <* updateLastPreCharPos
   content <- mconcat <$> blocksTillHeaderOrNote
   addToNotesTable (ref, content)
   return mempty

test/Tests/Readers/Org.hs

@@ -1028,6 +1028,16 @@ tests =
                 , note $ para ("Second" <> space <> "note.")
                 ])
 
+      , "Footnote that starts with emphasized text" =:
+          unlines [ "text[fn:1]"
+                  , ""
+                  , "[fn:1] /emphasized/"
+                  ] =?>
+          para (mconcat
+               [ "text"
+               , note . para $ emph "emphasized"
+               ])
+
       , "Footnote followed by header" =:
           unlines [ "Another note[fn:yay]"
                   , ""