Closed Captions creates a brand new subtitles if the sound hasn't been heard past 1.5 seconds

When a sound hasn't been heard past 1.5 seconds (when the subtitle start to fading out), and then you produce that sound again, instead of reusing previous subtitle, the game will create a brand new one, which cause them to briefly appear twice, since the subtitle is not fully disappear yet, i would expect the game to reusing it, just like in Java Edition.

Step to reproduce:

• Method 1: With command blocks

1. Give yourself a repeating command blocks

2. Put these inside the command blocks input: /playsound game.player.attack.strong @a

3. Change redstone to always active, and then set delay in ticks to 31

4. Exit command blocks screen

5. Observe

• Method 2: Manual

1. Punch on air by pressing left click, a subtitle will be produced

2. Wait until the subtitles start fading out, then press left click again

3. Observe

Expected results:
The game use the previous subtitle, since it still not fully disappear yet.

Observed results:
The game create a brand new subtitle, cause them to briefly appear twice.