Had this happen in different cz too yesterday. Haven't tried again since 3.3.1.
Yes, but not as often after update 3.3.01. First time I jumped into a CZ after last night's update, there wasn't any ship after selecting to fight for a faction. Then a min or so later, a wing of 4 spec ops ships jumped in and attacked me immediately.
After a short battle, I went to nearest outpost (owned by opposing faction) to repair my ship and now you get warning when near a CZ. The faction's outpost happened to be near a CZ and I was still allowed to choose a faction after landing. Lo and behold, station started to attack me as soon as I chose the opposing faction.
[video=youtube_share;fFlYfrJZUHo]https://youtu.be/fFlYfrJZUHo[/video]
Funny thing was when I logged back in, my ship was repaired free of charge.