S3D creates the same G-Code line multiple times

[0xdeadbeef]

While working on a G-Code converter I noticed that S3D seems to create pointless G-Code or even repeats the very same line of G-Code up to three times.
I first stumbled over this in an STL which had some issues but even after I fixed them with Meshmixer, I observed stuff like this:

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G1 X46.698 Y29.356 E16807.1386
G1 X47.136 Y28.504 E16807.1546
G1 X47.136 Y28.504 E16807.1546  <- exactly the same line repeated again
G1 X47.191 Y28.497 E16807.1555

And it's not only exact duplications, but also other fishy commands where the extrusion value is either not increased at all or by ridiculously small amounts:

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G1 X84.353 Y36.603 E53.1799
G1 X84.354 Y36.604 E53.1799 <- exactly the same extrude value, so it should be either G0 or G1 without E
G1 X84.373 Y36.625 E53.1823
G1 X84.373 Y36.625 E53.1824 <- very same coordinates with a 100nm (!) extrusion - fishy

I then implemented a detector for identical coordinates in my converter and tested it with GCode created for the official 3DBenchy STL model.
I was surprised to see >500 warnings about identical coordinates. And I didn't even check for identical extrusion values or coordinate/extrusion changes that are much too small to be sensible.

So is this a known issue?

[0xdeadbeef]

Dunno if coincidence or not, but the issue seems to be fixed in 3.1.