Crash reported by Flord

[eggrobin]

Unity Player [version: Unity 4.6.4f1_99f88340878d]

principia.dll caused an Access Violation (0xc0000005)
  in module principia.dll at 0023:8b4ed4de.

Error occurred at 2016-02-13_182824.
D:\Programok\Steam\steamapps\common\Kerbal Space Program\KSP.exe, run by fuvesi_b.
61% memory in use.
0 MB physical memory [3119 MB free].
0 MB paging file [0 MB free].
0 MB user address space [1565 MB free].
Read from location 98dc007f caused an access violation.

Stack trace:

(0x8B4ED4DE) ((module-name not available)): (filename not available): (function-name not available) + 0x0
(0x8B4EAB63) (principia): (filename not available): (function-name not available) + 0x0
(0x8B4FA5B3) (principia): (filename not available): principia__RenderedPrediction + 0x142
(0x8A8868A1) (Mono JIT code): (filename not available):  (wrapper managed-to-native) principia.ksp_plugin_adapter.Interface:RenderedPrediction (intptr,string,principia.ksp_plugin_adapter.XYZ) + 0x51 (8A886850 8A8868D5) [05AB4E70 - Unity Root Domain] + 0x0
(0x8A7DFA80) (Mono JIT code): (filename not available):  principia.ksp_plugin_adapter.PrincipiaPluginAdapter:RenderTrajectories () + 0x4c8 (8A7DF5B8 8A7E006D) [05AB4E70 - Unity Root Domain] + 0x0
(0x8A7DF598) (Mono JIT code): (filename not available):  principia.ksp_plugin_adapter.MapRenderer:OnPreCull () + 0x20 (8A7DF578 8A7DF59D) [05AB4E70 - Unity Root Domain] + 0x0

Decoded stack trace:
physics/forkable_body.hpp:174
ksp_plugin/plugin.cpp:383
ksp_plugin/interface.cpp:610

[pleroy]

Assumed to be a manifestation of #872.