Merged default into minor

--HG--
branch : minor

src/modules/graphics/opengl/wrap_Mesh.cpp

@@ -147,6 +147,9 @@ int w_Mesh_getVertices(lua_State *L)
 	size_t count = t->getVertexCount();
 	lua_createtable(L, count, 0);
 
+	if (count == 0 || vertices == nullptr)
+		return 1;
+
 	for (size_t i = 0; i < count; i++)
 	{
 		// Create vertex table.

src/modules/math/RandomGenerator.cpp

@@ -81,6 +81,11 @@ void RandomGenerator::setSeed(RandomGenerator::Seed newseed)
 
 	seed = newseed;
 	rng_state = seed;
+
+	// Xorshift's first couple results after seeding will be similar to results
+	// from very similar seeds, so we immediately discard them here.
+	for (int i = 0; i < 2; i++)
+		rand();
 }
 
 RandomGenerator::Seed RandomGenerator::getSeed() const