Added "editPost" action for customer sections.xml

Author: rossluk

app/code/Magento/Customer/etc/frontend/sections.xml

@@ -10,6 +10,7 @@
     <action name="customer/account/logout"/>
     <action name="customer/account/loginPost"/>
     <action name="customer/account/createPost"/>
+    <action name="customer/account/editPost"/>
     <action name="customer/ajax/login">
         <section name="checkout-data"/>
         <section name="cart"/>