Cloning a course in the web may not set item location and proxy fields correctly.
Cloning a course in the web may not set item location and proxy fields correctly under the following circumstances:
1. The proxy URL feature is enabled; UseProxy custkey is true and ProxyPrefix has the value of their proxy URL.
2. There exists items from before UseProxy was set to true where the proxy URL was manually prepended to the item location.
Released in Ares 4.6.6