I thought Update 1 will resolve this issue but it still persist.
I dunno if this was a bug. It is really annoying to erase the first letter of the variable, especially if the variable name is too long; my hand keeps on using the mouse instead of keyboard placing the insertion point on the first letter of it.
//really time consuming
//you may see the link ---> http://postimg.org/image/py4eabudz/
int firstValue = 0;
cin>>ffirstValue; //notice the first letter of the variable name is always doubled 'tab'
cin>>firstValue; //if I hit ctrl space.