Is this IPM update behavior correct?

[isc-jlou]

To test my upgrade step for this module HealthShare.HP.PAS v2.2.0, I ran "update HealthShare.HP.PAS 2.2.0". The command succeeded in IPM shell, but when running in CPF, it has some trailing failures:
[HP-PAS|HealthShare.HP.PAS] ApplyUpdateSteps START
Acquiring lock on ^IPM.UpdateLock(healthshare.hp.pas)
Starting to run update steps for module = healthshare.hp.pas & class = HS.HP.PAS.Update.V2
Running UpdateProduction()
UpdateProduction() Finished
Finished running update steps for module = healthshare.hp.pas & class = HS.HP.PAS.Update.V2
Releasing lock on ^IPM.UpdateLock(healthshare.hp.pas)
[HP-PAS|HealthShare.HP.PAS] ApplyUpdateSteps SUCCESS
ERROR! ObjectScript error: LoadNewModule+142^%IPM.Utils.Module.1 *NoTransaction

I confirm the upgrade step itself was applied in IRIS. It's this merge error is confusing.

To resolve this, I had to add TSTART, TCOMMIT, TROLLBACK into the upgrade step. After that, the update command works as expected in both IPM shell and CPF merge.

Is this expected behavior that future update steps need to include transactional commands?