message: fix UnitClassMapper progress
diff: @@ -55,7 +55,7 @@ export class UnitClassMapper {
  public static getProgressClassForUnit(unit: IUnit) {
  const classMapping = this.getClassMappingForUnit(unit);
  - if (!classMapping) {
  + if (!classMapping || classMapping.progressClass === null) {
  throw new InternalServerError(`No progress class for type ${unit.type} available`);
  }
  