diff --git a/addons/web/static/src/js/views/basic/basic_controller.js b/addons/web/static/src/js/views/basic/basic_controller.js
index e1d132c498e..b58a4154e1f 100644
--- a/addons/web/static/src/js/views/basic/basic_controller.js
+++ b/addons/web/static/src/js/views/basic/basic_controller.js
@@ -47,6 +47,10 @@ var BasicController = AbstractController.extend(FieldManagerMixin, {
         // operations to complete before checking if there are changes to
         // discard when discardChanges is called
         this.savingDef = Promise.resolve();
+        // discardingDef is used to ensure that we don't ask twice the user if
+        // he wants to discard changes, when 'canBeDiscarded' is called several
+        // times "in parallel"
+        this.discardingDef = null;
         this.viewId = params.viewId;
     },
     /**
@@ -78,21 +82,30 @@ var BasicController = AbstractController.extend(FieldManagerMixin, {
      */
     canBeDiscarded: function (recordID) {
         var self = this;
+        if (this.discardingDef) {
+            // discard dialog is already open
+            return this.discardingDef;
+        }
         if (!this.isDirty(recordID)) {
             return Promise.resolve(false);
         }
 
         var message = _t("The record has been modified, your changes will be discarded. Do you want to proceed?");
-        var def;
-        def = new Promise(function (resolve, reject) {
+        this.discardingDef = new Promise(function (resolve, reject) {
             var dialog = Dialog.confirm(self, message, {
                 title: _t("Warning"),
-                confirm_callback: resolve.bind(self, true),
-                cancel_callback: reject,
+                confirm_callback: () => {
+                    resolve(true);
+                    self.discardingDef = null;
+                },
+                cancel_callback: () => {
+                    reject();
+                    self.discardingDef = null;
+                },
             });
-            dialog.on('closed', def, reject);
+            dialog.on('closed', self.discardingDef, reject);
         });
-        return def;
+        return this.discardingDef;
     },
     /**
      * Ask the renderer if all associated field widget are in a valid state for
diff --git a/addons/web/static/tests/views/form_tests.js b/addons/web/static/tests/views/form_tests.js
index 51d070d197c..b130721fd66 100644
--- a/addons/web/static/tests/views/form_tests.js
+++ b/addons/web/static/tests/views/form_tests.js
@@ -8625,6 +8625,38 @@ QUnit.module('Views', {
         form.destroy();
     });
 
+    QUnit.test('call canBeRemoved twice', async function (assert) {
+        assert.expect(4);
+
+        const form = await createView({
+            View: FormView,
+            model: 'partner',
+            data: this.data,
+            arch: '<form><field name="display_name"/><field name="foo"/></form>',
+            res_id: 1,
+            viewOptions: {
+                mode: 'edit',
+            },
+        });
+
+        assert.containsOnce(form, '.o_form_editable');
+        await testUtils.fields.editInput(form.$('.o_field_widget[name=foo]'), 'some value');
+
+        form.canBeRemoved();
+        await testUtils.nextTick();
+        assert.containsOnce(document.body, '.modal');
+
+        form.canBeRemoved();
+        await testUtils.nextTick();
+        assert.containsOnce(document.body, '.modal');
+
+        await testUtils.dom.click($('.modal .modal-footer .btn-secondary'));
+
+        assert.containsNone(document.body, '.modal');
+
+        form.destroy();
+    });
+
     QUnit.test('domain returned by onchange is cleared on discard', async function (assert) {
         assert.expect(4);