$ git clone -n https://src.fedoraproject.org/rpms/unicode-emoji.git /var/lib/mock/f45-build-37716-717/root/chroot_tmpdir/scmroot/unicode-emoji
Cloning into '/var/lib/mock/f45-build-37716-717/root/chroot_tmpdir/scmroot/unicode-emoji'...
$ git fetch origin edfafa07368476b3a5bfd5941d66b61b8a8aa165:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/unicode-emoji
 * [new ref]         edfafa07368476b3a5bfd5941d66b61b8a8aa165 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at edfafa0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild