Fix form submit URL

html/translation.html

@@ -28,7 +28,7 @@
 <a href="{{ object.get_download_url }}">{% trans "Download" %}</a>
 
 {% if user.is_authenticated %}
-<form action="{% url 'trans.views.upload_translation' %}" method="post" enctype="multipart/form-data">
+<form action="{% url 'trans.views.upload_translation' project=object.subproject.project.slug subproject=object.subproject.slug lang=object.language.code %}" method="post" enctype="multipart/form-data">
 {% csrf_token %}
 <table>
 {{ form.as_table }}