$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-CheckManifest.git /var/lib/mock/f45-build-26559-618/root/chroot_tmpdir/scmroot/perl-Test-CheckManifest
Cloning into '/var/lib/mock/f45-build-26559-618/root/chroot_tmpdir/scmroot/perl-Test-CheckManifest'...
$ git fetch origin 232eb0dd371187eb8fcdc308bec9f7d5bca583de:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-CheckManifest
 * [new ref]         232eb0dd371187eb8fcdc308bec9f7d5bca583de -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 232eb0d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild