Fix construction of identity quaternion

Signed-off-by: Gaoyang Zhang <gy@blurgy.xyz>

glm/detail/qualifier.hpp

@@ -214,7 +214,11 @@ namespace detail
 	{
 		GLM_FUNC_QUALIFIER GLM_CONSTEXPR static genType identity()
 		{
+#		ifdef GLM_FORCE_QUAT_DATA_WXYZ
 			return genType(1, 0, 0, 0);
+#		else
+			return genType(0, 0, 0, 1);
+#		endif
 		}
 	};