bug#9644: Switching from/to DocView buffer shows raw pdf

[Glenn Morris]

Package: emacs
Version: 24.0.90
Severity: minor

(This also happens in Emacs 23.3.)

emacs -Q ./etc/refcards/refcard.pdf

Wait for DocView to finish converting the pdf to a png.

C-x 4 b RET  ; switch to *scratch* in other window
C-x 1        ; expand *scratch* window to full size
C-x b RET    ; switch back to PDF buffer

Now you see the raw pdf file in the buffer, not the rendered version.

Clicking/pressing a key in the pdf buffer brings back the rendered version.