Disable Submit Layer link when already on submission form

If we don't do this then clicking on the link when you're already on the
submission form will reload it, blanking out all the values.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>

base.html

@@ -29,7 +29,7 @@
                 <a class="brand" href="{% url layer_list %}">OpenEmbedded metadata index</a>
 
                 <ul class="nav pull-right">
-                    <li><a href="{% url submit_layer %}">Submit layer</a></li>
+                    {% block submitlink %}<li><a href="{% url submit_layer %}">Submit layer</a></li>{% endblock %}
                     {% if user.is_authenticated %}
                     {% if perms.layeritem.publish_layer %}
                         <li><a href="{% url layer_list_review %}">Review</a></li>

layerindex/submitlayer.html

@@ -15,6 +15,11 @@
 {% block title %}OpenEmbedded metadata index - submit layer{% endblock %}
 -->
 
+{% block submitlink %}
+<!-- Disable submit link, otherwise clicking it will blank the form! -->
+<li><a href="#">Submit layer</a></li>
+{% endblock %}
+
 {% block content %}
 {% autoescape on %}