$ git clone -n https://src.fedoraproject.org/rpms/perl-String-ToIdentifier-EN.git /var/lib/mock/f45-build-26426-617/root/chroot_tmpdir/scmroot/perl-String-ToIdentifier-EN
Cloning into '/var/lib/mock/f45-build-26426-617/root/chroot_tmpdir/scmroot/perl-String-ToIdentifier-EN'...
$ git fetch origin 586e8bcda1d2dcefbf7d130e56cc99c85eac530c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-String-ToIdentifier-EN
 * [new ref]         586e8bcda1d2dcefbf7d130e56cc99c85eac530c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 586e8bc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild