How to reproduce:
1. Open the attached project "IN-130388"
2. In the Build Profiles window (File → Build Profiles) select a platform (for example iOS)
3. Click the triangle button to the right of the Build button
4. In the dropdown menu, select “Clean Build…”
5. Open the Editor.log once build finishes
6. Search for {{Used Assets and files from the Resources folder, sorted by uncompressed size: }} in the Editor.log
7. Observe {{Assets/Fonts/Nunito-ExtraBold SDF.asset}} asset size
8. Select {{Assets/Fonts/Nunito-ExtraBold SDF.asset}} in the Hierarchy window
9. In the Inspector window click (three dots → Reset)
10. Repeat steps 2-6
11. Observe {{Assets/Fonts/Nunito-ExtraBold SDF.asset}} asset size

Actual result: Asset sizes are different (643.9 kb in step 7 and 61.4 kb in step 11)
Expected result: Asset sizes are the same

Reproducible with: 6000.0.6f1, 6000.0.66f2 (a74304d3a9e3), 6000.3.6f1, 6000.4.0b6, 6000.5.0a5
Could not test with: 2023.1.0a10 (Project gets stuck on "Initial Asset Database Refresh"), 6000.0.0b11 (a707ca4efec4) (Unity crashes when building)

Reproducible on: macOS 26.2 (M1 Max)
Not reproducible on: No other environments tested