What I expected to happen was...:
The game to show the name of the White Stained Glass Pane normally.
What actually happened was...:
The name of the block was "White Stained Glass Pane Pane" instead of "White Stained Glass Pane".
Steps to Reproduce:
All you have to do is hover over the Item and it will show the weird name.
Duplicate of MC-34642- If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.