Choosing rectangular area from KSnapShot causes itself to be captured, too. 

Please check image: http://imgur.com/v9ywKYo

Reproducible: Always

Steps to Reproduce:
1. Choose Rectangular Area
2. Set delay to 0 (no delay)
3. Click Capture
Actual Results:  
Choosing rectangular area from KSnapShot causes itself to be captured, too. 

Expected Results:  
It should hide itself completely before capture.