libtracker-data: Rollback transaction on unsupported ontology change
libtracker-data: Rollback transaction on unsupported ontology change

This does not make a difference when replaying journal, however, if
the journal is disabled, we want to continue using the old ontology
if we cannot use the new version.

hoheinzollern/tracker,hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,hoheinzollern/tracker,outofbits/tracker,outofbits/tracker,hoheinzollern/tracker,hoheinzollern/tracker,hoheinzollern/tracker