I texted SublimeText 3 build 3059 and it behaves more like my version. I tested having the cursor at the end of a line that is folded, in a line that is folded before the fold, and with the fold selected. I've made some videos of my version and Sublime's. Your version will select everything in the fold (when it is collapse) every time.

https://www.dropbox.com/s/qn1b10lyt2xjwno/ExpandVideos.zip