Yep they're just Pre-flowers. Don't keep them around anything you don't want knocked up those sacs will open and spew plant jizz everywhere.
Its all good. Nothing flowering in that area. Only vegging Phew! Lesson learned.... I'm gonna isolate this feller and flower it one last time. Get me some jizzzz. Can't have it making a mess...lol
Kind of a bummer. Turns out keeping male clones around could be a problem.