hum, I also cannot confirm this (XP MCE)...
on *:active:*: { echo -tsn using mirc $version - hopped to $active on cid $activecid last was $lactive }
(click in channel)
[23:53:11] using mirc 6.31 - hopped to #testings on cid 1 last was #testings
(click in status1)
[23:53:14] using mirc 6.31 - hopped to Status Window on cid 1 last was #testings
(click in status2)
[23:53:16] using mirc 6.31 - hopped to Status Window on cid 193 last was Status Window
(click in channel)
[23:53:20] using mirc 6.31 - hopped to #testings on cid 1 last was Status Window
(click in status2)
[23:53:21] using mirc 6.31 - hopped to Status Window on cid 193 last was #testings
(click in status1)
[23:53:23] using mirc 6.31 - hopped to Status Window on cid 1 last was Status Window