Incorrect crafting recipe for acacia hanging sign

Test:

With 6 stripped acacia logs and 2 chains attempt to create hanging signs

Expected result:

6 x hanging acacia signs are crafted

Actual result:

No crafting is possible.

More Info:

Looking in crafting table for acacia hanging signs, it looks like it has stripped oak logs instead of acacia - i assume this is a copy-and-paste error from the oak signs recipe.