autosubmit: click on type=search only submits if value changed
autosubmit: click on type=search only submits if value changed

clicking X on a type=search resets the value, but does not trigger a
change event. We handle that manually.

garbas/Patterns,janga1997/Patterns,garbas/Patterns,garbas/Patterns,janga1997/Patterns,janga1997/Patterns