Bug [ ]: Changing font size in Forum posts strips all ctrl-enter's, i.e < br >'s

When composing or editing a comment, if one selects text that has <br>'s and changes the font size the text replacement looses <br>'s.

This
Is
an
example.

Repeated 18pt:ThisIsanexample.

This is similar to Bug [ ]: Single spaced line feed via Ctrl-Enter lost during posting