In non-sahi controller mode, the recorder records _setValue for many times

ilovepumpkin

Recently I upgrade my Sahi to v4.3 Open Source version but I found it introduced a new issue - in the controler mode "java", the _setValue event is recorded for multiple times. Looks like it records the statement for each keyDown or keyUp event. Is there any approach for me to work around this issue? Thanks.
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browser.textbox("login").setValue("");
browser.textbox("login").setValue("a");
browser.textbox("login").setValue("ad");
browser.textbox("login").setValue("adm");
browser.textbox("login").setValue("admi");
browser.textbox("login").setValue("admin");
browser.password("password").setValue("");
browser.password("password").setValue("a");
browser.password("password").setValue("ad");
browser.password("password").setValue("adm");
browser.password("password").setValue("admi");
browser.password("password").setValue("admin");