Clicking in the custom anvil doesn't work

[andreasdc]

While this patch 9468289#diff-989f0d3e6798a8d82b7b603f791b199d33a92ea1a652c7893e5469d902b4a378R41
fixes the slot errors, it doesn't make the anvil inventory clickable, I can't get the result, as it always shows as null.

[Xnadii]

Hello, when can this bug be fixed?
I would also need this relatively urgently.
Many thanks in advance.