to avoid that the comobox triggers automatic API request with the queryParam default `query` GET param on manual typing (e.g., for filtering) from the user, we have all data already loaded and locally available. https://docs.sencha.com/extjs/7.0.0/classic/Ext.form.field.ComboBox.html#cfg-queryMode Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>