Do not compare virtual site weights to OpenMM #540
Merged
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Description
In #534 I added some detail that compares the virtual site directly to OpenMM's implementation; with Interchange v0.3.17 the implementation changed to make direct comparison no longer possible.
Note there are still several tests elsewhere, i.e. https://github.com/openforcefield/openff-forcefields/blob/main/openforcefields/tests/test_water_models.py