$ git clone -n https://src.fedoraproject.org/rpms/perl-Version-Next.git /var/lib/mock/f45-build-27366-622/root/chroot_tmpdir/scmroot/perl-Version-Next
Cloning into '/var/lib/mock/f45-build-27366-622/root/chroot_tmpdir/scmroot/perl-Version-Next'...
$ git fetch origin 3c3885845b0c2c38f0156e4fef568c6b25697ec9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Version-Next
 * [new ref]         3c3885845b0c2c38f0156e4fef568c6b25697ec9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c38858 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild