Steps to reproduce:

* Build with `integer` sanitizer
* Start: `UBSAN_OPTIONS="suppressions=$(pwd)/test/sanitizer_suppressions/ubsan:print_stacktrace=1:halt_on_error=1:report_error_type=1" ./src/qt/bitcoin-qt -chain=main`
* Enter `getdescriptorinfo "sh(multi(1,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,[00000000]xprv9uPDJpEQgRQfDcW7BkF7eTya6RPxXeJCqCJGHuCJ4GiRVLzkTXBAJMu2qaMWPrS7AANYqdq6vcBcBUdJCVVFceUvJFjaPdGZ2y9WACViL4L/58)0)"` into the console
if (replace_apostrophe_with_h_in_pub) {
        parse_pub = Parse(UseHInsteadOfApostrophe(pub), keys_pub, error);
    } else {
        parse_pub = Parse(pub, keys_pub, error);
    }
    BOOST_CHECK_MESSAGE(parse_pub, error);
    
    BOOST_CHECK(parse_priv->GetOutputType() == type);
    BOOST_CHECK(parse_pub->GetOutputType() == type);
    
    BOOST_CHECK(keys_priv.keys.size());
    BOOST_CHECK(!keys_pub.keys.size());
    
    std::string pub1 = parse_priv->ToString();
    std::string pub2 = parse_pub->ToString();
    BOOST_CHECK_MESSAGE(EqualDescriptor(pub, pub1), "Private ser: " + pub1 + " Public desc: " + pub);
    BOOST_CHECK_MESSAGE(EqualDescriptor(pub, pub2), "Public ser: " + pub2 + " Public desc: " + pub);
    
    if (!(flags & MISSING_PRIVKEYS)) {
        std::string prv1;
        BOOST_CHECK(parse_priv->ToPrivateString(keys_priv, prv1));
        BOOST_CHECK(EqualDescriptor(prv, prv1));
        BOOST_CHECK(!parse_priv->ToPrivateString(keys_pub, prv1));
        BOOST_CHECK(parse_pub->ToPrivateString(keys_priv, prv1));
        BOOST_CHECK(EqualDescriptor(prv, prv1));
        BOOST_CHECK(!parse_pub->ToPrivateString(keys_pub, prv1));
    }
    
    std::string norm1;
    BOOST_CHECK(parse_priv->ToNormalizedString(keys_priv, norm1));