Combining `FromHMS` and `ToHMS` gives unrounded result

[c3d]

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Running 10.3033 FromHMS ToHMS gives the result 10.30.32.999629... instead of the expected 10.30.33.

Here is the original report

[c3d]

Problem is caused by undesired conversion to fraction. In that specific case, the generated fraction is not generated with sufficient precision.

[c3d]

The correct solution is to make sure that the default value for FractionIterations is big enough to give us the correct result.