When point is at the end of the word and I try to use string-inflection I get an error code 2 message and the string doesn't change.

Is it possible to make it work when the point is at the end of the word, this is useful when typing in mini buffer

Once I start typing some word, If I want to change the case I have to go to the beginning of the word. Ideally I want to stay at the current position(which is end here) and still change the case.