$ git clone -n https://src.fedoraproject.org/rpms/perl-CPAN-DistnameInfo.git /var/lib/mock/f45-build-21983-589/root/chroot_tmpdir/scmroot/perl-CPAN-DistnameInfo
Cloning into '/var/lib/mock/f45-build-21983-589/root/chroot_tmpdir/scmroot/perl-CPAN-DistnameInfo'...
$ git fetch origin f63b5fa1e4bb42d4e7a6ab88f522db3c955f4814:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-CPAN-DistnameInfo
 * [new ref]         f63b5fa1e4bb42d4e7a6ab88f522db3c955f4814 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f63b5fa Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild