It seems that BFA plugin by its own does add this section on Jenkins jobs without being asked to do so, creating a huge number of job changes by user SYSTEM and polluting the job change history logs.

   <com.sonyericsson.jenkins.plugins.bfa.model.ScannerJobProperty plugin="build-failure-analyzer@1.19.0">
      <doNotScan>false</doNotScan>
    </com.sonyericsson.jenkins.plugins.bfa.model.ScannerJobProperty>

This should just not happen as a plugin is not supposed to change the job definition. Instead it should just assume the default value without doing anything.