I found some photos of dormant nodes and some that are greening. As @mamuang said they don’t put out flower buds. All growth comes from these nodes. There are three types of growth on jujubes. Primary (or upright growth), lateral (secondary growth), and deciduous fruiting branchlets. So when the nodes sprout they grow either the fruiting stems or upright growth or both. The lateral branches grow off the uprights. Fruiting branches also grow off the laterals.
Dormant node (actually not completely dormant. Light colored areas beginning to awaken)
Fruiting branchlets from node with tiny bloom buds developing along stem.
Node growing fruiting stem and beginning of upright. (Thicker, darker green, speckled)
Multiple uprights growing…dark green thick stems.
Fruiting stems with flower buds and blooms
Fruiting stems are shed in dormancy.
I have a reputation for pictures…I wouldn’t want to ruin it…