$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Command.git /var/lib/mock/f45-build-26583-618/root/chroot_tmpdir/scmroot/perl-Test-Command
Cloning into '/var/lib/mock/f45-build-26583-618/root/chroot_tmpdir/scmroot/perl-Test-Command'...
$ git fetch origin 58cfc662b5b799b9e451fa4535445cbd6df60718:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Command
 * [new ref]         58cfc662b5b799b9e451fa4535445cbd6df60718 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 58cfc66 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild