$ git clone -n https://src.fedoraproject.org/rpms/perl-Data-Types.git /var/lib/mock/f45-build-23050-595/root/chroot_tmpdir/scmroot/perl-Data-Types
Cloning into '/var/lib/mock/f45-build-23050-595/root/chroot_tmpdir/scmroot/perl-Data-Types'...
$ git fetch origin 812707cdbb07078437a81bcda7b547d5331397ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Data-Types
 * [new ref]         812707cdbb07078437a81bcda7b547d5331397ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 812707c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild