Add a comment to the relaybandwidth bug.

svn:r12320

doc/TODO

@@ -95,6 +95,9 @@ Things we'd like to do in 0.2.0.x:
           also 0.2.0.
         - phobos says relaybandwidth* sometimes don't do what we expect.
           http://interloper.org/tmp/2007-06-bw-usage.png
+          I believe this is the result of confusion about whether to use
+          relaybandwidth or bandwidthrate to control bandwidth usage for 
+          servers.  Chances are, this isn't a bug per se. [phobos]
         - this notion of authorities notifying servers that they're
           unreachable is bunk -- it's leftover from the time when all
           servers ran 24/7. now it triggers every time a server goes