Search widget does not work properly for negated rec_name criteria
I'm trying to search a group or records by its rec_name that does not match with a given criteria. As a example, records are of model ir.lang and the criteria is rec_name different than English. But when I put !English in the search widget, Tryton changes this input by "!" English, and does not find anything.
I have tested it in 3.8
I will try to fix it.