Assertions cause forced exit after any MapNode or SkyNode is destroyed.

[AnyOldName3]

rocky::MapNode, rocky::SkyNode and possibly other classes copy the InstanceVSG object they're constructed with, and when they're destroyed, so is their copy of the instance. However, when an instance is destroyed, it sets rocky::Instance::_global_status to GeneralError, and as that's static, it means Instance::status() will return a failed status for all instances, and ROCKY_HARD_ASSERT_STATUS will self-destruct.

Either these nodes shouldn't be copying the instance, or the instance status shouldn't be static so the destroyed instances don't pollute the surviving ones.