Is there an @endcond missing?

I don't know if what I did there makes any sense. I just compared type_mat4x4 to type_mat3x3 and type_mat2x2 files. In all the other files there is an @encond at that place, while mat4x4 misses one.
Is that intentional or could it be that it was accidentally removed in aa26672da1c6272ba71ff6e9b90434113a1edbb1?

Either way, this screws up my my doxygen configuration for a program that includes glm.