[Fixed in 1.13] Moving Pillager and Ravager Spawn eggs from a slot to another displays a different color

Steps to reproduce (on mobile)

1. Have a pillager/ravager spawn egg in your inventory;

2. Touch it and move to another slot

Steps to reproduce (on Windows 10)

1. Have a pillager/ravager spawn egg in your inventory

2. Open the full inventory and shift-click the spawn egg

Expected Results:
The egg stays the same color all the time.

Observed Results:
The egg displays a brown texture without any dots while it's being moved.

Notes:

From: @unknown

ravager.entity.json

"geometry": {
        "default": "geometry.ravager"
      },
      "render_controllers": [
        "controller.render.ravager"
      ],
      "spawn_egg": {
        "base_color": "#757470",
        "overlay_color": "#5b5049"

vindicator.entity.json

"geometry": { "default": "geometry.vindicator.v1.8" },
      "spawn_egg": {
        "texture": "spawn_egg",
        "texture_index": 39