Version: 0.8.1 (using 4.3.3 (KDE 4.3.3) "release 3", KDE:43 / openSUSE_11.2)
OS: Linux (x86_64) release 220.127.116.11-0.1-desktop
Hit PrintScrn to open KSnapshot. Click on Save As. The Save As dialog opens in some folder (the one you last saved anything in) and lists the existing png files in that dialog. Close the Save As dialog without doing anything. Open Konsole and delete a png file from that folder. Then go back to KSnapshot and click on Save As again. The deleted file is still listed in the Save As dialog.
*** This bug has been marked as a duplicate of bug 207361 ***