Missing wrong face on spawners (North and South)

When you place a spawner and place a block on it to the north or south, the opposite face disappears when you look across.

Steps to reproduce the issue

1. Place a spawner.

2. Place a block facing north or south.

3. Go through the spawner.

Expected result

The face on which the block is placed disappears if you look inside the spawner.

Actual result

When looking inside the spawner, the opposite face is not visible (If the block was placed in the south, the north face will not be visible, and if the block was placed in the north, the south face will not be visible).