Dispensers can place carved pumpkins in incorrect positions when trying to make a golem

When attempting to make a snow golem, dispensers can incorrectly place carved pumpkins up to two blocks away from snow blocks in the North, West, and Down directions of the world.

Steps to Reproduce:

This issue cannot be easily replicated in it's entirity, instead, these steps will be a simple reproduction of one of the possible incorrect placements

1. Give the player a dispenser with carved pumpkins in it:

   /give @p dispenser[container=[{slot:0,item:{id:"minecraft:carved_pumpkin",count:64}}]] 1

2. Replicate the following setup shown here:
   (Dispenser MUST be facing east, or south)

   [media]

Observed Results:

The dispenser is able to place the pumpkin in a place where it will not produce a snow golen.

Expected Results:

The dispenser should only place a carved pumpkin where it would actually produce a living snow golem.

Screenshots/Videos:

Using the /fill command repeatedly, I have tested every possible location where the carved pumpkin can be placed, and have come up with this:

1. The orange stained glass is where carved pumpkins can be placed.

2. The lime green glass is where the carved pumpkins should be able to be placed.

3. The structure:

1. [media]

Video showcasing the issue:

Notes:

Related to other dispenser placement issues:

MC-217273 MC-116879 MC-269230 MC-224611