[FIX] calendar: don't duplicate all the calendar_contact

Before this patch, add_filter was called 2 times.
Once when we select a partner in the drop down, we trigger a onchange value
to change from false to the partner id.
Once to reset to false the value after the first add_filter()

This commit closes #9758

1 files changed, 5 insertions, 2 deletions

diff --git a/addons/calendar/static/src/js/base_calendar.js b/addons/calendar/static/src/js/base_calendar.js
index 411a5086f31..da9659bc788 100644
--- a/addons/calendar/static/src/js/base_calendar.js
+++ b/addons/calendar/static/src/js/base_calendar.js
@@ -101,8 +101,11 @@ function reload_favorite_list(result) {
                 },
             });
             this.ir_model_m2o.insertAfter($('div.oe_calendar_filter'));
-            this.ir_model_m2o.on('change:value', self, function() { 
-                self.add_filter();
+            this.ir_model_m2o.on('change:value', self, function() {
+                // once selected, we reset the value to false.
+                if (self.ir_model_m2o.get_value()) {
+                    self.add_filter();
+                }
             });
         },
         add_filter: function() {