bug#17893: 24.4.50; (error "Marker does not point anywhere")

[martin rudalics]

> Indirect buffer != cloned buffer.  An indirect buffer is created by
> make-indirect-buffer and shares the buffer text with the parent buffer.
> A cloned buffer is created by clone-buffer, and is a new buffer
> independent from its origin, with its own buffer text.

Thanks!  I confused `clone-buffer' and `clone-indirect-buffer'.

martin