evas events: Fix repeated calls to mouse callbacks

evas events: Fix repeated calls to mouse callbacks

After my many input events changes, a same object callback
could be called multiple times in a row because both mouse
and multi events were sent. As such, the multi event had no
direct effect (no callback called) but it reset the object's
last event type. This allowed the mouse event callbacks to be
called again.

Note that I haven't tested multi touch yet :(

Very good catch by @bu5hm4n!

Fixes T4462
Fixes T4467