Fixed moving flagellum having default size

[CI09]

Brief Description of What This PR Does

This PR does some stuff...

Related Issues

Closes #5640

as long as falgellum is the only case of custom scaling

Progress Checklist

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[hhyyrylainen]

as long as falgellum is the only case of custom scaling

I didn't look at the code but I think it would be better to unify the display logic so that if more organelles that change are added, they will automatically get handled in both placed editor visuals and the hover models.