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Question: Trouble with Dagger?!

Question:Trouble with Dagger?!

John Fredsted 2243 Maple 2017
physics dagger
June 19 2017
0

To my amazement, the following code hangs

restart:
with(Physics):
Physics:-Version();
Setup(anticommutativeprefix = psi):
Dagger(psi);

at the last line, or produces the output "Error, (in sprintf) too many levels of recursion" if I wait long enough.

What is going on? Am I just being stupid? The version line verifies to me that I am using the Physics package as shipped with Maple 2017, version date 17th of May 2017. If I outcomment the Setup line, then Dagger does not hang. Do others experience the same behaviour?
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