Fix timestamp usage with random label. #4830
Merged
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Random label uses the current time to know if a new label needs to use an incrementing counter so that labels generated in the same millisecond sort properly when reading back. Since the code at the higher level used a timestamp and the random label used another, it was possible to end up with timestamped names having the same millisecond, but not sorting properly. The fix is to have the random label code return the timestamp it used to the caller so that the caller can use it to generate timestamped names.
TYPE: NO_HISTORY
DESC: Fix timestamp usage with random label.