Fix for issue when a label is the first item in a UDO's op-chain, insdshead was NULL on the original item and caused jumping from gotos to fail
Fix for issue when a label is the first item in a UDO's op-chain, insdshead was NULL on the original item and caused jumping from gotos to fail

csound/csound,csound/csound,ketchupok/csound,ketchupok/csound,csound/csound,ketchupok/csound,ketchupok/csound,csound/csound,ketchupok/csound,csound/csound,csound/csound,csound/csound,csound/csound,ketchupok/csound,csound/csound,ketchupok/csound,csound/csound,ketchupok/csound,ketchupok/csound,ketchupok/csound