"In stock" should be 'none' by default

changedetectionio/model/Watch.py

@@ -38,6 +38,7 @@ base_config = {
     'track_ldjson_price_data': None,
     'headers': {},  # Extra headers to send
     'ignore_text': [],  # List of text to ignore when calculating the comparison checksum
+    'in_stock' : None,
     'in_stock_only' : True, # Only trigger change on going to instock from out-of-stock
     'include_filters': [],
     'last_checked': 0,

changedetectionio/store.py

@@ -248,6 +248,7 @@ class ChangeDetectionStore:
                 'check_count': 0,
                 'fetch_time' : 0.0,
                 'has_ldjson_price_data': None,
+                'in_stock': None,
                 'last_checked': 0,
                 'last_error': False,
                 'last_notification_error': False,

changedetectionio/templates/watch-overview.html

@@ -141,7 +141,7 @@
                     {% if watch['processor'] == 'restock_diff'  %}
                     <span class="restock-label {{'in-stock' if watch['in_stock'] else 'not-in-stock' }}" title="detecting restock conditions">
                         <!-- maybe some object watch['processor'][restock_diff] or.. -->
-                        {% if watch['last_checked'] %}
+                        {% if watch['last_checked'] and watch['in_stock'] != None %}
                             {% if watch['in_stock'] %} In stock {% else %} Not in stock {% endif %}
                         {% else %}
                             Not yet checked