$ git clone -n https://src.fedoraproject.org/rpms/perl-Version-Requirements.git /var/lib/mock/f45-build-27381-622/root/chroot_tmpdir/scmroot/perl-Version-Requirements
Cloning into '/var/lib/mock/f45-build-27381-622/root/chroot_tmpdir/scmroot/perl-Version-Requirements'...
$ git fetch origin b7ae495776181824bb8ed33c1e7eace960ff1532:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Version-Requirements
 * [new ref]         b7ae495776181824bb8ed33c1e7eace960ff1532 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7ae495 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild