Crop offset issue when loading state file

[harripj]

Describe the bug
The crop offsets do not appear to be maintained when loading the state file.

In fact the correct crop offsets are maintained when viewing the crop in the pipeline, but the rendered volume appears to be located at the origin (0, 0, 0).

To Reproduce
Steps to reproduce the behavior:

1. Load two datasets, eg example datasets
2. Crop one volume
3. Save state
4. Load state to see that volume has been shifted to (0, 0, 0)

Expected behavior
The volume is rendered in its position when saving the state file.

Screenshots
Crop settings:

Volume before saving state:

Volume immediately after loading state:

Desktop (please complete the following information):

• Operating system: Windows 10
• Tomviz version: 1.10

Hardware (please complete the following information):

• Device: Dell Precision 3640
• Graphics card: NVIDIA Quadro P400

Additional context
As mentioned, the correct crop values are maintained in the state file on load, but the volume is incorrectly positioned.

State file showing the bug:
crop test2.zip