Armored zombies no longer drop armor after becoming Drowned (Bedrock 26.51)

I found a possible bug in Minecraft Bedrock 26.51 on Android. Before the recent update, armored zombies that converted into Drowned could drop their armor when killed. After the update, the armor no longer drops.

I tested this multiple times using my Drowned farm in a Superflat world. When the armored zombie converts, I can hear an armor unequip sound, and the armor can become visually hidden/overlap on the Drowned, but the armor does not drop when the Drowned is killed.

This worked before the update but stopped after updating to Bedrock 26.51.