Waterlogged blocks turn lava into obsidian or cobblestone on all sides, even those water doesn't flow out of

The Bug

Lava converts into obsidian or cobblestone when coming into contact with waterlogged blocks even if the water doesn't visually touch the lava.

Steps to Reproduce

• Build the setup as shown in the attachment below. setup.png
• Break the diamond block.
• Take note as to whether or not lava converts into obsidian or cobblestone when coming into contact with waterlogged blocks even if the water doesn't visually touch the lava.

Observed Behavior

Lava converts into obsidian or cobblestone when coming into contact with waterlogged blocks even if the water doesn't visually touch the lava.

Expected Behavior

Lava would not convert into obsidian or cobblestone when coming into contact with waterlogged blocks when the water doesn't visually touch the lava.