$ git clone -n https://src.fedoraproject.org/rpms/perl-Filter-Simple.git /var/lib/mock/f41-build-815744-149744/root/chroot_tmpdir/scmroot/perl-Filter-Simple
Cloning into '/var/lib/mock/f41-build-815744-149744/root/chroot_tmpdir/scmroot/perl-Filter-Simple'...
$ git fetch origin d7866479584443571a9514c96594b734adc92107:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Filter-Simple
 * [new ref]         d7866479584443571a9514c96594b734adc92107 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d786647 Increase release to favour standalone package