Validation for rollback with ChangeSetId is not correct

Hello everybody,

Example:

1. <changeSet id="id1" author="mmr" dbms="postgresql">
   
     <createTable tableName="TABLE_TO_DROP">
       <column name="ID" type="BIGINT"/>
       <column name="TEXT_VALUE" type="VARCHAR(64)"/>
     </createTable>
   
     <rollback>
       <dropTable tableName="TABLE_TO_DROP"/>
     </rollback>
   </changeSet>
   
   <changeSet id="id2" author="mmr" dbms="postgresql">
   
     <dropTable tableName="TABLE_TO_DROP"/>
   
     <rollback changeSetId="id1" changeSetAuthor="mmr"/>
   </changeSet>
   

This code runs correct when the underlying database is postgres.

Running the code on H2 database, i get this error:

1. Caused by: liquibase.parser.core.ParsedNodeException: Change set path-ignored::id1::mmr does not exist
    at liquibase.changelog.ChangeSet.handleRollbackNode(ChangeSet.java:399)
    at liquibase.changelog.ChangeSet.handleChildNode(ChangeSet.java:317)
    at liquibase.changelog.ChangeSet.load(ChangeSet.java:311)
    at liquibase.changelog.DatabaseChangeLog.createChangeSet(DatabaseChangeLog.java:513)
    at liquibase.changelog.DatabaseChangeLog.handleChildNode(DatabaseChangeLog.java:311)
    at liquibase.changelog.DatabaseChangeLog.load(DatabaseChangeLog.java:282)
    at liquibase.parser.core.xml.AbstractChangeLogParser.parse(AbstractChangeLogParser.java:25)

It seems, that the liquibase validates the <rollback>-tag although the parent changeSet and the changeSet "id1" are both not for the H2 database.

My Question:

Is this a known bug? Do you know a work-around for this problem?

Thanks in advance and best regards,

Matthias