`test/python/TransactionTest.py` leads to segfault

[gudzpoz]

Discovered when playing around #2246 and building wheels with cibuildwheel.

Reproducing Steps

Build ledger with -DUSE_PYTHON=ON, install it and run python test/python/TransactionTest.py. It is also reproduced when running Python tests in the cmake.yml workflow (gudzpoz@0242b68, results).

$ python test/python/TransactionTest.py
.*** stack smashing detected ***: terminated
[1]    712857 IOT instruction (core dumped)  python test/python/TransactionTest.py

Bisecting the file it seems the following line causes the segfault.

ledger/test/python/TransactionTest.py

Line 38 in 42a2121

xacts[0].note = 'this is also a note'

Stack trace: gdb.bt.txt

Environment

OS: Arch Linux x86_64 (EndeavourOS)
Ledger: Ledger 3.3.2-20230330
Python: Python 3.11.6