Raid Boss Bar becomes automatically empty when defeated

Summary:
Raid Boss Bar becomes completely empty automatically when defeated. This is not consistent with the Java edition where the Raid Boss Bar continues to function  when raid defeated until it disappears.

1. Summon the Raid.

2. Make a defeat in a raid.

Observed results:
Raid Boss Bar became completely empty with the caption "Raid - Defeat".

Expected results:
Raid Boss Bar will not become empty when defeated, but will continue to display the current number of raiders until it disappears.

Screenshots:
Bedrock

Java