[Orgmode] BUG: clock table gets corrupted (Emacs 21)

[Stefan Ring]

Hi,

today I decided to bisect a major annoyance that has bugged me for quite 
some time now. I'm using a relatively old version of Emacs on Fedora 5. 
Emacs 21.4.1 from emacs-21.4-14.x86_64.rpm, to be exact.

Upon clocking in, a single CLOCK: line is converted to a :CLOCK: block, 
and this is where the trouble is. On my machine, this is what happens. 
Before:

* Test
  CLOCK: [2009-01-12 Mon 22:57]--[2009-01-12 Mon 22:57] =>  0:00

After clocking in:

* Test
  :CLOCK:

  CLOCK: [2009-01-12 Mon 22:57]--[2009-01-12 Mon 22:57] =>  0:00
  :END:CLOCK: [2009-01-12 Mon 23:27]

The exact changeset that broke this is: 
f70127dd3f95473ac80aa407bafca8f68f08e002
And within that specifically the "(org-clock-in): Use 
org-indent-line-function to indent clock lines." part (+1/-1 line).

When I revert this single line in the current head, it starts working again.

HTH
Stefan