emacs 24 problem: `revert` command forgets bindings from `occur` buffer for compressed files.

[Paul K]

Hallo Emacs Users.

Steps to reproduce:
1) visit some compressed file, for example: /tmp/file.txt.bz2
2) M-x occur: `on some string that exisits in the file`
3) visit line with string metched by pressing <ENTER> in `occur` buffer
4) modify contents of file.txt.bz2, but do not save it.
5) M-x revert-buffer. Answer Yes.
    This action probably forgets all the pointers within file.txt.bz2
buffer, even `point`.
6) go back to `occur` buffer and try to visit the same line again:
EMACS JUMPS TO LAST LINE WITHIN file.txt.bz2.

Is it a bug?

best regards,
Paul