[Reg 4.7 -> 4.8] Code completion for sizeof() gets in my way when typing

Probably a regression, I didn't notices this earlier.

Steps to reproduce:

#include <string.h>

typedef struct {
  int bar;
} Foo;

int main()
{
  Foo foo;
  memset(&foo, 0|) // type ", sizeof(foo));" at cursor
  // expected: memset(&foo, 0, sizeof(foo));
  // actual:   memset(&foo, 0, sizeof (foo));)()
  	
  return 0;
}

• Note that is will work if I accept the completion, as the cursor then jumps into the sizeof braces
• After sizeof, an additional space is entered which I don't want and have to delete manually