Fixes #5799: `yii\bootstrap\ButtonGroup::buttons` can take all options that...

Fixes #5799: `yii\bootstrap\ButtonGroup::buttons` can take all options that are supported by `yii\bootstrap\Button`

ButtonGroup.php

@@ -81,8 +81,9 @@ class ButtonGroup extends Widget
         foreach ($this->buttons as $button) {
             if (is_array($button)) {
                 $button['view'] = $this->getView();
-                if (!isset($button['encodeLabel']))
+                if (!isset($button['encodeLabel'])) {
                     $button['encodeLabel'] = $this->encodeLabels;
+                }
                 $buttons[] = Button::widget($button);
             } else {
                 $buttons[] = $button;

CHANGELOG.md

@@ -7,6 +7,7 @@ Yii Framework 2 bootstrap extension Change Log
 - Bug #5570: `yii\bootstrap\Tabs` would throw an exception if `content` is not set for one of its `items` (RomeroMsk)
 - Enh #4181: Added `yii\bootstrap\Modal::$headerOptions` and `yii\bootstrap\Modal::$footerOptions` (tuxoff, samdark)
 - Enh #5735: Added `yii\bootstrap\Tabs::renderTabContent` to support manually rendering tab contents (RomeroMsk)
+- Enh #5799: `yii\bootstrap\ButtonGroup::buttons` can take all options that are supported by `yii\bootstrap\Button` (aleksanderd)
 - Chg #5874: Upgraded Twitter Bootstrap to 3.3.x (samdark)