On Tue, Sep 20, 2016 at 4:06 PM Kaushal Modi <kaushal.modi@gmail.com> wrote:

>
> I do not understand overlays very well, but it looks like verilog-mode or
> some minor mode created 5 overlays over the same region, and they did not
> get removed even when those modes were disabled.
>

Some more info.. with each revert-buffer call, that overlay is replicating
over the same region.. I reverted the buffer 4-5 times and now in the C-u
C-x = generated Help buffer, I see..

 From 1466 to 1482
  end-closed           t
  evaporate            t
  local-map            [Show]
  mouse-face           highlight
  start-closed         t
  verilog-include-file t
 From 1466 to 1482
  end-closed           t
  evaporate            t
  local-map            [Show]
  mouse-face           highlight
  start-closed         t
  verilog-include-file t
...

(and so on 27 times!)

-- 

Kaushal Modi