[FIX] base, web, website: settings - prevent duplicate enterprise labels

Before this commit:
Multiple widgets for the same field on the same view (V11.0 settings) would not
retrieve the correct label but all of them.

Now:
We now retrieve the correct label instead of all of them

addons/web/static/src/js/views/form/form_renderer.js

@@ -811,7 +811,15 @@ var FormRenderer = BasicRenderer.extend({
         // Attach the tooltips on the fields' label
         _.each(this.allFieldWidgets[this.state.id], function (widget) {
             var idForLabel = self.idsForLabels[widget.name];
+            // We usually don't support multiple widgets for the same field on the
+            // same view but it is the case with the new settings view on V11.0.
+            // Therefore, we need to retrieve the correct label since it could be
+            // displayed multiple times on the view, otherwise, for example the
+            // enterprise label will be displayed as many times as the field
+            // exists on settings.
+            var $widgets = self.$('.o_field_widget[name=' + widget.name + ']');
             var $label = idForLabel ? self.$('label[for=' + idForLabel + ']') : $();
+            $label = $label.eq($widgets.index(widget.$el));
             if (config.debug || widget.attrs.help || widget.field.help) {
                 self._addFieldTooltip(widget, $label);
             }