Made the logic behind rendering of extended summary in extended grid view columns more clear.
Made the logic behind rendering of extended summary in extended grid view columns more clear.

elijah513/YiiBooster,elijah513/YiiBooster,strong2much/YiiBooster3,strong2much/YiiBooster3,armano2/YiiBooster,armano2/YiiBooster,elijah513/YiiBooster,strong2much/YiiBooster3,armano2/YiiBooster,armano2/YiiBooster,strong2much/YiiBooster3,clevertech/YiiBooster,clevertech/YiiBooster,clevertech/YiiBooster,elijah513/YiiBooster,clevertech/YiiBooster