[GRO] 'First Childhood Friend' milestone not unlocked when instant good friends

My two toddler sims live in a tiny home which boosts new friendship. As a result, both of them befriended another toddler upon meeting but the friendship bar immediately jumped to good friends, skipping the regular friends phase. The 'First Childhood Friend' milestone did not unlock. I cheated the friendship bar back to regular friends, this unlocked the milestone.

Requested fix: be able to unlock the 'First Childhood Friend' milestone as good friends.