If I select a move a method from one message category to another using a
normal browser, the reorganization does not get recorded in the current
change set.

It makes no difference if I select "change category..." from the
(second) method list menu, or drag the method to the new category.

Mike

p.s. Image is 3.1alpha

p.p.s. Reorganization using the message category menu item "reorganize" is recorded in the change set