Contact Quick Find: a bug?

In my environment, I have 'fullname', 'lastname', 'firstname' as the Contact 'Quick Find Columns'.
I noticed that the 'quick find' only search contacts from the current result view, not all records(which it should do). To work around this problem, you can edit '\_common\scripts\stage.js'

crmGrid.Reset(); // add this line here

if (crmGrid.GetParameter("viewid") != SavedQuerySelector.quickFindQuery)
{
    crmGrid.SetParameter("viewid", SavedQuerySelector.quickFindQuery);
    crmGrid.Reset();
}
else
{
    crmGrid.PageNumber = 1;
}

To test it, you must firstly delete all Temporary Internet Files on Internet Explorer Options.