Banner patterns on shields and banners look different despite having identical designs

The Bug:

Banner patterns on shields and banners look different despite having identical designs.

Steps to Reproduce:

1. Give yourself a banner with a banner pattern by using the command provided below.

   /give @s minecraft:white_banner[minecraft:banner_patterns=[{color:"black",pattern:"minecraft:flower"}]]

2. Give yourself a shield with the same banner pattern on it by using the command provided below.

   /give @s minecraft:shield[minecraft:banner_patterns=[{color:"black",pattern:"minecraft:flower"}]]

3. Compare the banner pattern on the shield with the banner pattern on the banner.
4. Take note as to whether or not banner patterns on shields and banners look different despite having identical designs.

Observed Behavior:

Banner patterns on shields and banners look different despite having identical designs.

Expected Behavior:

Banner patterns on shields and banners would not look different when having identical designs.