[BUG] Currently selected variant overwrites default variant.

[MrAwesomeLuigi]

Describe the bug
The currently selected variant in Blockbench will overwrite whatever the default variant of the model is supposed to be on export. Any textures replaced by the variant will get deleted and replaced by the variant in json.

To Reproduce

1. Select a variant that isn't the default one
2. Export the model
3. Summon the AJ Rig
4. Model is not the default variant

Expected behavior
The model would export with the default variant correctly.

• Version [v1.0.0-pre4]

[SnaveSutit]

I'm unable to reproduce this issue. No matter what variant I select when exporting it doesn't change the default variant. So I'm going to assume that I've accidentally fixed this while making other changes to variants and pre5 will fix this issue.