Use fmpz_init_set_readonly at several places #41295
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Supposedly this version does not copy, while the previous one copies the fmpz.
Sometimes a temporary variable is needed so that the
Integerobject does not get destroyed (thus destroying the underlyingmpz) during the time thefmpzis used.There are a few other occurrences in other places, as well as
fmpq_init_set_readonly, but we can start with this.📝 Checklist
⌛ Dependencies