[IMP] web: use true and false as values for boolean group by

In the graph view, by default the value false was considered to be a non
set value (which is the case when dealing with M2O fields). But in the
case of boolean fields, we want to display the value false.

1 files changed, 1 insertions, 1 deletions

diff --git a/addons/web/static/src/js/views/graph/graph_model.js b/addons/web/static/src/js/views/graph/graph_model.js
index dd7d0efa28f..eb831d5047a 100644
--- a/addons/web/static/src/js/views/graph/graph_model.js
+++ b/addons/web/static/src/js/views/graph/graph_model.js
@@ -202,7 +202,7 @@ return AbstractModel.extend({
      * @returns {string}
      */
     _sanitizeValue: function (value, field) {
-        if (value === false) return _t("Undefined");
+        if (value === false && this.fields[field].type !== 'boolean') return _t("Undefined");
         if (value instanceof Array) return value[1];
         if (field && this.fields[field] && (this.fields[field].type === 'selection')) {
             var selected = _.where(this.fields[field].selection, {0: value})[0];