Type a few characters in the address or Google bar; realise you got the last two wrong so do two backspaces – you might have thought you got back to where you were, but you didn’t or maybe you did!
If it did an autocomplete, then the first backspace cancelled the autocomplete, and the second cancelled one character;
If it did not do an autocomplete, then you lost both characters (probably what you wanted).
This just can’t be right – I have to look at the screen to find out what my typing has done.
The number of times I type a search term and press go, only to look up and see that there is an extra character at the front really pisses me off.