Dark/pale oak leaves sometimes do not generate centered on the tree

Occasionally when grown, dark oak leaves will grow only on one side of the tree. Appears to spawn all the leaves, just not in the right place. This does not always happen when growing a dark oak tree.

How to reproduce:

1. Execute the following command to spawn a dark oak tree:

   /place feature minecraft:dark_oak

   or the following command to spawn a pale oak tree:

   /place feature minecraft:pale_oak

2. Repeat step 1 until you find a tree with uncentered leaves.

Expected result:

The leaves would generate roughly in the center of the treetop.

Observed result:

The leaves can sometimes generate several blocks off-center from the treetop.