Check quaternions for equal dot_product instead of comparing their components individually (backport #1238) #1243
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The lookup can result in quaternions that look different component-wise while still being very similar. Instead of comparing them component-wise to decide whether they are similar, we check whether their dot-product is equal to 1.0. That should be more robust.
This is an automatic backport of pull request #1238 done by Mergify.