btn class was set twice

Nefast · web-flow · commit 94e79cebeca5 · 2018-11-07T21:00:26.000+01:00
diff --git a/src/Symfony/Bridge/Twig/Resources/views/Form/bootstrap_4_layout.html.twig b/src/Symfony/Bridge/Twig/Resources/views/Form/bootstrap_4_layout.html.twig
@@ -150,7 +150,7 @@
 {%- endblock button_widget %}
 
 {% block submit_widget -%}
-    {%- set attr = attr|merge({class: (attr.class|default('btn-primary') ~ ' btn')|trim}) -%}
+    {%- set attr = attr|merge({class: (attr.class|default('btn-primary'))|trim}) -%}
     {{- parent() -}}
 {%- endblock submit_widget %}
 
