$ git clone -n https://src.fedoraproject.org/rpms/perl-Filter.git /var/lib/mock/f45-build-23634-598/root/chroot_tmpdir/scmroot/perl-Filter
Cloning into '/var/lib/mock/f45-build-23634-598/root/chroot_tmpdir/scmroot/perl-Filter'...
$ git fetch origin c393275738cc4bdf08ddef9dc54b07ce00414d92:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Filter
 * [new ref]         c393275738cc4bdf08ddef9dc54b07ce00414d92 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c393275 Perl 5.44 re-rebuild of bootstrapped packages