$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-SmbHash.git /var/lib/mock/f45-build-22655-593/root/chroot_tmpdir/scmroot/perl-Crypt-SmbHash
Cloning into '/var/lib/mock/f45-build-22655-593/root/chroot_tmpdir/scmroot/perl-Crypt-SmbHash'...
$ git fetch origin 31649b51613f70e7c70aec230ba1e66addcf1539:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-SmbHash
 * [new ref]         31649b51613f70e7c70aec230ba1e66addcf1539 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31649b5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild