Backend.Tests: 2nd acceptance test for bug 242 #2919

Job	Run time
macOS--mono-only	3m 32s
macOS--dotnet6-only	2m 23s
macOS--dotnet6-and-mono	2m 22s
windows--dotnet6-and-legacyFramework	3m 5s
windows--legacyFramework-only	9m 11s
linux22-github--dotnet-and-mono	1m 56s
linux22-github--dotnet-and-newmono	1m 46s
linux22-vanilla--stockmono-only	3m 13s
windows--dotnet6-only	3m 5s
linux20-github--dotnet-and-mono	3m 17s
linux20-github--dotnet-and-newmono	1m 54s
linux22-vanilla--newmono-only	3m 51s
linux22-vanilla--stockdotnet6-and-newmono	3m 3s
linux22-vanilla--stockdotnet6-and-stockmono	1m 57s
linux22-vanilla--stockdotnet6-only	2m 1s
linux20-vanilla--newmono-only	4m 24s
linux20-vanilla--stockmono-only	2m 57s
conventions	0s
snap_pkg	0s
	53m 57s

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