Github user rmetzger commented on the issue:
https://github.com/apache/flink/pull/3042
Very nice change!
I would love to merge it to 1.2 as well, its so helpful!
One very minor thing: I would suggest to round the percentages shown for
the completion. I had an instance where it was showing a progress of
51.000000001%.
Here's a screenshot from my testing job:

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