throw on reading oldms files (#436) #1873

Job	Run time
build-test-downstream (ubuntu-24.04, gcc-14)	3m 38s
build-test-downstream (ubuntu-24.04, clang-18)	4m 28s
build (ubuntu-24.04, clang-18)	6m 46s
build-test-downstream (macos-14, armv8-clang-14)	2m 10s
build-test-downstream (windows-2022, msvc-1940)	3m 23s
build (ubuntu-24.04, gcc-14)	7m 39s
build-test-downstream (macos-13, clang-14)	3m 2s
build (macos-13, clang-14)	7m 12s
build (windows-2022, msvc-1940)	4m 27s
build (macos-14, armv8-clang-14)	4m 8s
test (macos-14, armv8-clang-14)	5m 0s
docker (ubuntu-24.04, clang-18)	33s
	52m 26s

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