I am not sure this is normal behaviour but might stem from code to control input.

I tried this with multiple alias and it seems that if the parent domain (example.com) is the first entry when the primary HO entry is a sub-domain of it, then the alias are all wiped. IF the parent domain (example.com) is any entry but the top one, then the alias all remain.

This works¶

• Create a Host Override entry
  
• Create alias, parent domain (example.com) last or just not first entry.
  
• Alias appear as they should
  

Alias are all wiped¶

• Create a Host Override entry
  
• Create alias, parent domain (example.com) first
  
• The primary HO entry stays but all of the alias are wiped