Loss of stats with reforging

[Skray]

Wowhead/WoW Freakz Link: -
Descrierea bugului / Bug description: When a stat is reforged one point of the reforged stat is lost in addition to the points that should be taken away.
Dovada / Proof:
Two items that illustrate the loss of stats: One ring, and a bracer, this happens with all items and stats though.
http://imgur.com/a/fmYaF#0
http://imgur.com/a/31HnK#0

Full explanation: INCOMING WALL OF TEXT

Ring of Rivalry grants 127 expertise rating. Without the ring I have 703 expertise rating, with it I have 830 (703+127=830). This proves that Ring of Rivalry does grant the full 127 expertise, and that the bug is not with the item, but with reforging.
When I reforge out of expertise and into another stat, such as crit, I get 50 points of crit, and lose 50 points of expertise so that the ring should be granting me 77 expertise rating (127-50=77). The tooltip on the item shows that it should be granting 77. And I should have 780 expertise (703+77=780).
When I look at my expertise with the reforged ring equipped, I only have 779. The reforged ring only grants 76 expertise instead of 77.
One extra expertise is lost, and is not granted to crit. The one point just disappears.

I’m not sure how reforging was programmed, but from what it looks like this is an issue with rounding. Since 40%*127=50.8 it takes 51 out of expertise, but grants the correct amount of 50 to crit. It should round down to the 50 rather than up to 51, and take 50 out of expertise and grant 50 to crit.

This loss of one point of the stat happens with all items and all stats that are reforged out of. I tested it with several other items and all lose one extra point of whatever stat is reforged. It’s a minor issue, but really annoying for trying to hit caps and whatnot since I have to use a suboptimal reforging in order to get the most DPS from my gear.

[vyrz0r]

and you are crying for 1 expertise?

[Skray]

It's not just 1 expertise. It's 1 stat per item reforged.
The example I used was just the 1 expertise lost from the ring.

In total you lose about half a gems worth of stats.

It is a minor bug, but it is very annoying because it invalidates results from spreadsheets and simulators. The best way to reforge may not actually be the best.