Fix ListCoins test failure due to unset g_wallet_allow_fallback_fee

New global variables were introduced in #11882 and not setting them causes:

    wallet/test/wallet_tests.cpp(638): error in "ListCoins": check wallet->CreateTransaction({recipient}, wtx, reservekey, fee, changePos, error, dummy) failed
    wallet/test/wallet_tests.cpp(679): error in "ListCoins": check list.begin()->second.size() == 2 failed [1 != 2]
    wallet/test/wallet_tests.cpp(686): error in "ListCoins": check available.size() == 2 failed [1 != 2]
    wallet/test/wallet_tests.cpp(705): error in "ListCoins": check list.begin()->second.size() == 2 failed [1 != 2]

It's possible to reproduce the failure reliably by running:

    src/test/test_bitcoin --log_level=test_suite --run_test=wallet_tests/ListCoins

Failures happen nondeterministically because boost test framework doesn't run
tests in a specified order, and tests that run previously can set the global
variables and mask the bug.

0 files changed, 0 insertions, 0 deletions