Null checksum after liquibase upgrade

Hi, we upgraded liquibase from 3.8.9 to 4.3.5.
We faced problems with checksums not matching, we fixed it with spring.liquibase.clear-checksums=true in application.properties (spring boot). However now md5sum column in databsechangelog table contains only nulls for the changes that originated from the older version.

When I run application with liquibase DEBUG logging I can see that new checksums are calculated for the old records, however they are not updated:

{"timestamp":"2021-12-14T09:15:59.928+01:00","level":"DEBUG","thread":"main","context":"default","message":"Updating null or out of date checksum on changeSet db/changelog/7.10-changelog.xml::7.10/postgres_identity_7.10.0::x@x.com to correct value","source":"liquibase.changelog","service_domain":"service-order-service-inventory","environment_name":"-","application_name":"TAN-Orchestrator"}
{"timestamp":"2021-12-14T09:15:59.928+01:00","level":"DEBUG","thread":"main","context":"default","message":"Executing with the 'jdbc' executor","source":"liquibase.executor","service_domain":"service-order-service-inventory","environment_name":"-","application_name":"TAN-Orchestrator"}
{"timestamp":"2021-12-14T09:15:59.929+01:00","level":"DEBUG","thread":"main","context":"default","message":"Computed checksum for inputStream as cee1316ba2a7c7259256dadfa78c5582","source":"liquibase.util","service_domain":"service-order-service-inventory","environment_name":"-","application_name":"TAN-Orchestrator"}
{"timestamp":"2021-12-14T09:15:59.929+01:00","level":"DEBUG","thread":"main","context":"default","message":"Computed checksum for 8:cee1316ba2a7c7259256dadfa78c5582: as 06ab54719b4fd90eaee95564e8ae1836","source":"liquibase.util","service_domain":"service-order-service-inventory","environment_name":"-","application_name":"TAN-Orchestrator"}
{"timestamp":"2021-12-14T09:15:59.930+01:00","level":"DEBUG","thread":"main","context":"default","message":"0 row(s) affected","source":"liquibase.executor","service_domain":"service-order-service-inventory","environment_name":"-","application_name":"TAN-Orchestrator"}

How can we fix this problem? Hopefully there is other solution than to update it manually, we face this issue on multiple microservices.

Thank you

When you added spring.liquibase.clear-checksums=true it runs a clearchecksum command with empties the md4sum column in the databasechangelog table.
If you remove that, the next time you run an liquibase update it will repopulate the column with the checksum of the changeset.