Firefly bushes do not seem to generate fireflyes when snowlogged

Steps to Reproduce:

1. Place/find a firefly bush

2. Snowlogge it if is not

3. set time to night with “/time set night“

Observed Results:
Fireflyes do not seem to generate when firefly bush is snowlogged

Expected Results:
Fireflyes should alwais show up if on dark places/night