$ git clone -n https://src.fedoraproject.org/rpms/perl-DateTime-Format-MySQL.git /var/lib/mock/f39-build-1438435-32207/root/chroot_tmpdir/scmroot/perl-DateTime-Format-MySQL
Cloning into '/var/lib/mock/f39-build-1438435-32207/root/chroot_tmpdir/scmroot/perl-DateTime-Format-MySQL'...
$ git fetch origin 0760768a0958a5bcba6d5be3aca5abbdf08943a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DateTime-Format-MySQL
 * [new ref]         0760768a0958a5bcba6d5be3aca5abbdf08943a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0760768 Correct a changelog