(Found in build 209)
A pattern that comes recommended for speeding up events that do not need to worry about thread synchronization is:
Which when reformatting (with all options checked) becomes:
Now the function would probably be done a bit better by naming the local variable with a lowercase name, but I think this is still worth a bug report. Reformatting shouldn't arbitrarily introduce 'this.' where none previously existed, changing the semantics of the code.
As a side note, is it possible to get another option under brace layout for no-brace for single line, but leave the statement on the next line.