[0.50.03-SNAPSHOT] Tech Level and Tech Base not saving on Combat Vehicles with pre-2820 design years

[PhoenixHeart512]

Brief Description *

If a design is saved as "unofficial" with a year around 2810-ish, if you save and load the design it changes to "standard" tech level and "clan" tech base (if clan is available).

Unit used in testing was created from a vanilla unit as part of this test, I did not use a previous custom design.

This also ONLY affects designs set to Inner Sphere tech base and unofficial tech level.

• When tested with Inner Sphere tech base and experimental tech level, no issues were observed
• When tested with Clan tech base and unofficial tech level, no issues were observed

If a design is saved with this:

When you load the design after refreshing cache or relaunching MML it loads as this:

Attaching unit file created for testing purposes:

3. Steps to Reproduce

1. Save unit with tech base IS and tech level Experimental
2. Close and re-open MML
3. Load unit and observe the change in tech base and tech level

Attach Files

Manticore Heavy Tank Mk X.zip

Severity *

Medium (Gameplay Limitation): Non-core functionality is impaired, providing a suboptimal but playable experience.

MegaMeklab Suite Version *

0.50.03-SNAPSHOT Build Date: 2025-01-07T03:24:04.187140524

Operating System *

Windows 10

Java Version *

17.0.6

Final Verification

• I confirm this is a single, unique issue that hasn't been reported before
• I have included all necessary information and files to help reproduce this issue
• I have asked on MegaMek Discord about this issue
• I have confirmed this issue is being opened on the correct repository: MegaMek, MegaMekLab, or MekHQ

[radar6510]

Turns out this bug is also effecting infantry in a similar way. Though instead of putting them as Clan Standard it puts them under Clan Unofficial. Probably a similar cause to what's doing it to the vehicles.