Fixes #2328. Would only happen when ticks and ends were spaced too far apart (or there were no ticks in a juicestream).
Nunit "by design" will not run tests for NETStandard projects (see: https://github.com/nunit/dotnet-test-nunit/issues/122#issuecomment-329531632).
Closes #2149.
No reason for it to be a container.
The -1 default was getting stored to the database.