When compiling without external signer support, the resulted `bench_bitcoin.exe` fails on Windows:
```
>.\bench_bitcoin.exe -filter=AddrManSelectByNetwork
Error: bad optional access
```

Steps to reproduce the failure:
- cross compiling on Ubuntu 22.04:
```
$ make -j $(nproc) -C depends HOST=x86_64-w64-mingw32 NO_QT=1
$ ./autogen.sh
$ ./configure CONFIG_SITE=$PWD/depends/x86_64-w64-mingw32/share/config.site --disable-external-signer
$ make -j $(nproc)
```
- compiling natively on Windows:

Apply the diff as follows:
```diff
--- a/build_msvc/bitcoin_config.h.in
+++ b/build_msvc/bitcoin_config.h.in
@@ -41,9 +41,6 @@
 /* Define this symbol to enable ZMQ functions */
 #define ENABLE_ZMQ 1
 
-/* define if external signer support is enabled (requires Boost::Process) */
-#define ENABLE_EXTERNAL_SIGNER /**/
-
 /* Define to 1 if you have the declaration of `be16toh', and to 0 if you
    don't. */
 #define HAVE_DECL_BE16TOH 0
```
Then
```
>py -3 build_msvc\msvc-autogen.py
>msbuild build_msvc\bitcoin.sln -property:Configuration=Release -verbosity:minimal
>src\bench_bitcoin.exe -filter=AddrManSelectByNetwork
Error: bad optional access
```

---

The failure does not manifest itself when running `bench_bitcoin.exe` using Wine on Linux.
auto v1 = Vector(t1);
    BOOST_CHECK_EQUAL(v1.size(), 1U);
    BOOST_CHECK(v1[0].origin == &t1);
    BOOST_CHECK_EQUAL(v1[0].copies, 1);
    auto v2 = Vector(std::move(t2));
    BOOST_CHECK_EQUAL(v2.size(), 1U);
    BOOST_CHECK(v2[0].origin == &t2); // N
    BOOST_CHECK_EQUAL(v2[0].copies, 0);
    auto v3 = Vector(t1, std::move(t2));
    BOOST_CHECK_EQUAL(v3.size(), 2U);
    BOOST_CHECK(v3[0].origin == &t1);
    BOOST_CHECK(v3[1].origin == &t2); // N
    BOOST_CHECK_EQUAL(v3[0].copies, 1);
    BOOST_CHECK_EQUAL(v3[1].copies, 0);
    auto v4 = Vector(std::move(v3[0]), v3[1], std::move(t3));
    BOOST_CHECK_EQUAL(v4.size(), 3U);
    BOOST_CHECK(v4[0].origin == &t1);
    BOOST_CHECK(v4[1].origin == &t2);
    BOOST_CHECK(v4[2].origin == &t3); // N
    BOOST_CHECK_EQUAL(v4[0].copies, 1);
    BOOST_CHECK_EQUAL(v4[1].copies, 1);
    BOOST_CHECK_EQUAL(v4[2].copies, 0);
    auto v5 = Cat(v1, v4);
    BOOST_CHECK_EQUAL(v5.size(), 4U);
    BOOST_CHECK(v5[0].origin == &t1);
    BOOST_CHECK(v5[1].origin == &t1);
    BOOST_CHECK(v5[2].origin == &t2);
    BOOST_CHECK(v5[3].origin == &t3);
    BOOST_CHECK_EQUAL(v5[0].copies, 2);
    BOOST_CHECK_EQUAL(v5[1].copies, 2);