MRP: add compatibility code for unit tests that wrongly use 'industrial_phase'

product/ERP5/Document/Amount.py

@@ -91,6 +91,11 @@ class Amount(Base, VariatedMixin):
       return []
     variation_list = resource.getVariationBaseCategoryList(
         omit_optional_variation=omit_optional_variation)
+    # BBB: 'industrial_phase' should be used exclusively for production and
+    #      should not appear on resource. But many unit tests still use it.
+    #      For the same reason, we treat as an optional variation.
+    if ('industrial_phase' not in variation_list
+        and not omit_optional_variation):
       variation_list.append('industrial_phase')
     if base_category_list:
       variation_list = filter(base_category_list.__contains__, variation_list)