erp5_mrp: fixed proxification of a field in ProductionOrder_viewOperationConsumption

the display of this form was broken

bt5/erp5_mrp/SkinTemplateItem/portal_skins/erp5_mrp/Base_viewMRPFieldLibrary.xml

@@ -121,6 +121,7 @@
                         <string>my_resource_title</string>
                         <string>my_specialise</string>
                         <string>my_variation_category_list</string>
+                        <string>my_view_mode_listbox_start_date</string>
                       </list>
                     </value>
                 </item>

bt5/erp5_mrp/SkinTemplateItem/portal_skins/erp5_mrp/Base_viewMRPFieldLibrary/my_view_mode_listbox_start_date.xml

+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <global name="ProxyField" module="Products.ERP5Form.ProxyField"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>delegated_list</string> </key>
+            <value>
+              <list>
+                <string>editable</string>
+              </list>
+            </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>my_view_mode_listbox_start_date</string> </value>
+        </item>
+        <item>
+            <key> <string>message_values</string> </key>
+            <value>
+              <dictionary>
+                <item>
+                    <key> <string>external_validator_failed</string> </key>
+                    <value> <string>The input failed the external validator.</string> </value>
+                </item>
+              </dictionary>
+            </value>
+        </item>
+        <item>
+            <key> <string>overrides</string> </key>
+            <value>
+              <dictionary>
+                <item>
+                    <key> <string>field_id</string> </key>
+                    <value> <string></string> </value>
+                </item>
+                <item>
+                    <key> <string>form_id</string> </key>
+                    <value> <string></string> </value>
+                </item>
+                <item>
+                    <key> <string>target</string> </key>
+                    <value> <string></string> </value>
+                </item>
+              </dictionary>
+            </value>
+        </item>
+        <item>
+            <key> <string>tales</string> </key>
+            <value>
+              <dictionary>
+                <item>
+                    <key> <string>editable</string> </key>
+                    <value> <string></string> </value>
+                </item>
+                <item>
+                    <key> <string>field_id</string> </key>
+                    <value> <string></string> </value>
+                </item>
+                <item>
+                    <key> <string>form_id</string> </key>
+                    <value> <string></string> </value>
+                </item>
+                <item>
+                    <key> <string>target</string> </key>
+                    <value> <string></string> </value>
+                </item>
+              </dictionary>
+            </value>
+        </item>
+        <item>
+            <key> <string>values</string> </key>
+            <value>
+              <dictionary>
+                <item>
+                    <key> <string>editable</string> </key>
+                    <value> <int>0</int> </value>
+                </item>
+                <item>
+                    <key> <string>field_id</string> </key>
+                    <value> <string>my_date</string> </value>
+                </item>
+                <item>
+                    <key> <string>form_id</string> </key>
+                    <value> <string>Base_viewFieldLibrary</string> </value>
+                </item>
+                <item>
+                    <key> <string>target</string> </key>
+                    <value> <string>Click to edit the target</string> </value>
+                </item>
+              </dictionary>
+            </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>

bt5/erp5_mrp/SkinTemplateItem/portal_skins/erp5_mrp/ProductionOrder_viewOperationConsumption/listbox_start_date.xml

@@ -77,11 +77,11 @@
                 </item>
                 <item>
                     <key> <string>field_id</string> </key>
-                    <value> <string>my_start_date</string> </value>
+                    <value> <string>my_view_mode_listbox_start_date</string> </value>
                 </item>
                 <item>
                     <key> <string>form_id</string> </key>
-                    <value> <string>ProductionOrderLine_viewFieldLibrary</string> </value>
+                    <value> <string>Base_viewMRPFieldLibrary</string> </value>
                 </item>
                 <item>
                     <key> <string>target</string> </key>