2007/07/15:
reverse search is all fucked up.
* maybe fixed now (2007/07/18)

2007/07/15:
sometimes you don't get search-as-you-type (and have to hit C-s an extra time
to see anything).

2007/07/12:
sometimes searching seems to save the wrong cursor position, or not overwrite
the previously used one, and you end up finding matches *before* your search
started.

2006/07/04:
undo/redo is mostly fixed, but there are still occasionally problems, which seem
to relate to pasting in multiple lines and cursor positioning.
* i haven't seen this in awhile (2007/08/01)