What a coincidence. I was reading about something similar two nights ago.
Occasionally while reading I come across sentences that I think are poorly worded and initially don't make sense, but after re-reading two or three times, it becomes clear what the intention is.
Found a couple of articles on Wikipedia describing it, if anybody is interested...
https://en.wikipedia.org/wiki/Garden-path_sentence
and
https://en.wikipedia.org/wiki/Synchysis
and Synchysis seems to be the phenomenon PeterT is referring to.