Merge pull request #6338 from RosettaCommons/roccomoretti/interactive_mmff_soft_crash
[Foldit] Fix common soft crash issue with MMFF wiggle.
Fix an issue with soft crashes when MMFF wiggle is used. Turns out the handling of Arginine doesn't properly account for charging the sidechain, which results in problems with parameterizing it in MMFF.
RELEASE NOTES: Fix internal issue with MMFF Wiggle in certain cases.