unfinished sentence in malloc overview top chunk allocation

[k4lizen]

However, if there are no fastbins, then that likely means that both the top chunk, and attempting memory defragmentation (when you're freed memory is too broken up to allocate as one larger chunk).

The:

then that likely means that both the

implies the sentence will continue but it just stops. Is there meant to be something else before the full stop (and after the brackets)?