Amethyst crystals aren't placed in other valid spaces when targeting invalid areas of placement

The Bug:

Amethyst crystals aren't placed in other valid spaces when targeting invalid areas of placement.

Steps to Reproduce:

1. Build the setup as shown in the attachment below. setup.png
2. Obtain any amethyst crystal and attempt to place it down whilst targeting any side faces of the leaf block.
3. Take note as to whether or not amethyst crystals are placed in other valid spaces when targeting invalid areas of placement.

Observed Behavior:

Amethyst crystals aren't placed in other valid spaces when targeting invalid areas of placement.

Expected Behavior:

Amethyst crystals would be placed in other valid spaces when targeting invalid areas of placement.