Also confirm this, and it would be nice to add this feature. I know not many will use this, and from those who do there are other alternatives, relatively fast, but not quite as fast.
I noticed that the problem can be summed up by this: when suggesting an url the selection is made from left to right. the better way is to have the selection from right to left . This way, when you hold shift and hit left/right arrow the selection is adjusted from the left, this way fixing this problem. Chrome does it this way (the end result is the same, don't know about implementation).
Thanks and Hi to all