bug#1458: 23.0.60; mouse-posn-property: Args out of range

[Stefan Monnier]

You patch to timer_check doesn't seem right: it may cause the
current-buffer to be changed even if the timer doesn't do anything, just
because the current-buffer before running the timer wasn't the
selected-window's buffer.  It causes no end of trouble in Gnus
(e.g. when connecting to an IMAP server, it calls read-passwd during
which calls to read-event can run timers, so we start read-passwd in
the IMAP process's buffer and we finish it in the *Group* buffer or
which ever buffer is currently displayed, after which
send-process-string fails because it can't find the process).


        Stefan