How to reproduce:
1. Open the “IN-101761_PartialPublicBug“ project
2. Observe the Console

Expected result: No errors appear
Actual result: Error present: “Temp/GeneratedCode/Assembly-CSharp/MyScript__System_8025633190.g.cs(5,22): error CS0260: Missing partial modifier on declaration of type 'MySystem'; another partial declaration of this type exists”

Reproducible with: 1.3.10(2022.3.62f1), 1.3.14(2022.3.62f1, 6000.0.49f1, 6000.1.4f1, 6000.2.0b2), 1.4.0-exp.2(2022.3.62f1, 6000.0.49f1, 6000.1.4f1, 6000.2.0b2)
Not reproducible with: 1.3.9(2022.3.62f1)

Reproducible on: macOS 15.4.1 (M1 Max), Windows 10 (by user)
Not reproducible on: no other environment tested