I found an annoying behavior of the inline rename. If I attempt to rename
a variable, e.g. "iter" in code below, it automatically shows me a list of suggestions, e.g. "iterator". If I go ahead and type "i" and then hit ENTER, it doesn't change it to "i" but instead accepts the suggestion "iterator". Argh!
Now if I turn off the inline rename (Editor->Behavior->Rename local variables in place), so that it uses the old Rename Dialog, notice that it doesn't automatically popup the suggestions. I can type "i" and hit ENTER and it changes "iter" to "i". In the Rename Dialog, you have to hit DOWN ARROW to see a list of choices.
I think it should work the same way for inline rename.