diff --git a/addons/web/static/src/js/fields/relational_fields.js b/addons/web/static/src/js/fields/relational_fields.js
index 35addc4a091..cf3d357c4dc 100644
--- a/addons/web/static/src/js/fields/relational_fields.js
+++ b/addons/web/static/src/js/fields/relational_fields.js
@@ -205,6 +205,17 @@ var FieldMany2One = AbstractField.extend({
     _getSearchBlacklist: function () {
         return [];
     },
+    /**
+    * Returns the display_name from a string which contains it but was altered
+    * as a result of the show_address option using a horrible hack.
+    *
+    * @private
+    * @param {string} value
+    * @returns {string} display_name without show_address mess
+    */
+    _getDisplayName: function (value) {
+        return value.split('\n')[0];
+    },
     /**
      * @private
      * @param {string} name
@@ -244,7 +255,7 @@ var FieldMany2One = AbstractField.extend({
         // and hope for the best that noone tries to uses this mechanism to do
         // something else.
         if (this.nodeOptions.always_reload) {
-            value = value.split('\n')[0];
+            value = this._getDisplayName(value);
         }
         this.$input.val(value);
         if (!this.autocomplete_bound) {
@@ -302,7 +313,7 @@ var FieldMany2One = AbstractField.extend({
             .then(function (result) {
                 // possible selections for the m2o
                 var values = _.map(result, function (x) {
-                    x[1] = x[1].split("\n")[0];
+                    x[1] = self._getDisplayName(x[1]);
                     return {
                         label: _.str.escapeHTML(x[1].trim()) || data.noDisplayContent,
                         value: x[1],
@@ -478,7 +489,7 @@ var FieldMany2One = AbstractField.extend({
     _onInputKeyup: function () {
         if (this.$input.val() === "") {
             this.reinitialize(false);
-        } else if (this.m2o_value !== this.$input.val()) {
+        } else if (this._getDisplayName(this.m2o_value) !== this.$input.val()) {
             this.floating = true;
             this._updateExternalButton();
         }
diff --git a/addons/web/static/tests/fields/relational_fields_tests.js b/addons/web/static/tests/fields/relational_fields_tests.js
index b35a1e84000..3bf541b097d 100644
--- a/addons/web/static/tests/fields/relational_fields_tests.js
+++ b/addons/web/static/tests/fields/relational_fields_tests.js
@@ -199,6 +199,57 @@ QUnit.module('relational_fields', {
         form.destroy();
     });
 
+    QUnit.test('many2ones in form views with show_adress', function (assert) {
+        assert.expect(4);
+        var form = createView({
+            View: FormView,
+            model: 'partner',
+            data: this.data,
+            arch: '<form string="Partners">' +
+                    '<sheet>' +
+                        '<group>' +
+                            '<field ' +
+                                'name="trululu" ' +
+                                'string="custom label" ' +
+                                'context="{\'search_default_customer\':1, \'show_address\': 1}" ' +
+                                'options="{\'always_reload\': True}"' +
+                            '/>' +
+                        '</group>' +
+                    '</sheet>' +
+                '</form>',
+            mockRPC: function (route, args) {
+                if (args.method === 'name_get') {
+                    return this._super(route, args).then(function (result) {
+                        result[0][1] += '\nStreet\nCity ZIP';
+                        return result;
+                    });
+                }
+                return this._super(route, args);
+            },
+            res_id: 1,
+        });
+
+        assert.strictEqual($('a.o_form_uri').html(), 'aaa<br>Street<br>City ZIP',
+            "input should have a multi-line content in readonly due to show_address");
+        form.$buttons.find('.o_form_button_edit').click();
+        assert.strictEqual(form.$('button.o_external_button:visible').length, 1,
+            "should have an open record button");
+
+        form.$('input.o_input').click();
+        form.$('input.o_input').trigger($.Event('keyup', {
+            which: $.ui.keyCode.ESC,
+            keyCode: $.ui.keyCode.ESC,
+        }));
+
+        assert.strictEqual(form.$('button.o_external_button:visible').length, 1,
+            "should still have an open record button");
+        form.$('input.o_input').trigger('focusout');
+        assert.strictEqual($('.modal button:contains(Create and edit)').length, 0,
+            "there should not be a quick create modal");
+
+        form.destroy();
+    });
+
     QUnit.test('many2ones in form views with search more', function (assert) {
         assert.expect(3);
         this.data.partner.records.push({