Merge remote-tracking branch 'upstream/develop' into develop

Core/Material/HomogeneousMaterial.cpp

@@ -38,6 +38,7 @@ namespace {
 // Used in experimental calculation of scattering matrix:
 cvector_t OrthogonalToBaseVector(cvector_t base, const kvector_t vector)
 {
+    if (base.mag2()==0.0) return cvector_t {};
     cvector_t projection = (base.dot(vector)/base.mag2())*base;
     return vector.complex() - projection;
 }

Tests/Functional/Python/PyPersistence/CMakeLists.txt

@@ -77,5 +77,6 @@ test_example("simulation/ex05_BeamAndDetector/SpecularSimulation" 2e-10)
 
 test_example("simulation/ex06_Miscellaneous/CylindersInAverageLayer" 2e-10)
 test_example("simulation/ex06_Miscellaneous/HalfSpheresInAverageTopLayer" 2e-10)
+test_example("simulation/ex06_Miscellaneous/MagneticSpheres" 2e-10)
 
 test_example("fitting/ex01_SampleParametersIntro/SampleParametersIntro" 2e-10)