Thumb joints oriented incorrectly on Quest

[Zee2]

This issue has been migrated a new MRTK repository, and the status of this issue will now be tracked at the following location:

• Thumb joints oriented incorrectly on Quest MixedRealityToolkit/MixedRealityToolkit-Unity#376

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Describe the bug

Somehow, in some way, Quest thumb joints are still oriented incorrectly. This is incredibly perplexing, as this was a bug in Meta's OpenXR implementation that was supposedly fixed quite a while ago.

In fact, @maluoi's StereoKit gets correct thumb joints from Quest, without any kind of special workaround! So, I'm really quite flabbergasted how/why we're still getting these incorrect joints on Quest.

To reproduce

Steps to reproduce the behavior:

1. Run MRTK3 on Quest (pre.10)
2. Observe screwy thumb joints
3. Be sad

Expected behavior

Thumb's up-axis should be out the top of the thumbnail.

[Zee2]

Yayyy, this is just an out-of-date OXR loader. Bumping to OXR Plugin 1.5.1 fixes it :)

[Zee2]

Fixed!