Un-trimmed armor displays being trimmed when in slots where previous trimmed armor was

When you put armor that has no trims in slots where armor with trims had been, the armor that has no trims displays as if it has trims, it reverts back to the armor without trims when moved out of the slots that the trimmed armor was in.

Steps to Reproduce:
1. Put a trimmed armor in a chest / inventory / any gui (even crafting tables and furnaces ect.)

2. Remove the trimmed armor

3. Put an un-trimmed armor where the trimmed armor was