Fix RelationField default value.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@10333 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_base/SkinTemplateItem/portal_skins/erp5_base/CurrencyExchangeLine_view/my_price_currency_title.xml

@@ -375,9 +375,7 @@
                 </item>
                 <item>
                     <key> <string>default</string> </key>
-                    <value>
-                      <list/>
-                    </value>
+                    <value> <string></string> </value>
                 </item>
                 <item>
                     <key> <string>default_module</string> </key>

bt5/erp5_base/bt/revision

-53
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+54
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