Foliage Actors Orphaned on Blueprint Compile

Recompiling a foliage painted actor bp will orphan already painted actors.

Repro Video : [Link Removed]

1. Create an Actor BP and add a StaticMesh
2. Create a Landscape
3. In Foliage tools - Add Foliage Type 'Actor Foliage'
4. Assign newly created BP, paint with Actor
5. Open created actor BP and Compile

Result: Painted Foliage actors are removed from foliage tool.