Loading a structure using /structure cuts off structure on chunk borders when rotated 90 or 270 degrees.

Partner Rank: 3

Partner Team Reporting: The Misfit Society

Verification builds: 1.16.100.52

Summary:
Loading a structure using /structure cuts off structure on chunk borders when rotated 90 or 270 degrees.

Impact:
Our new map relies heavily on structures and being able to rotate them. Using the /structure command rather than structure blocks simplifies our logic tremendously but it's currently unusable due to this bug.

Repro Steps:

1. /fill 0 4 0 63 4 15 redstone_block
2. /structure save test 0 4 0 63 4 15
3. /structure load test ~ ~ ~ 90_degrees OR /structure load test ~ ~ ~ 270_degrees

Load at different locations within a chunk to clearly see cutoff at chunk borders (F3+M will help)

Expected Results:
Loading of structure in its entirety.

Observed Results:
The structure is cut off at a chunk border.

Screenshots/Videos attached: Yes

Regression Builds: N/A

Notes:

• This only happens when using the command. The structure loads fine using a structure block.