$ git clone -n https://src.fedoraproject.org/rpms/rust-unic-langid.git /var/lib/mock/f45-build-45861-828/root/chroot_tmpdir/scmroot/rust-unic-langid
Cloning into '/var/lib/mock/f45-build-45861-828/root/chroot_tmpdir/scmroot/rust-unic-langid'...
$ git fetch origin 07916e392c832ee36d5f52a382e81240d5469301:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unic-langid
 * [new ref]         07916e392c832ee36d5f52a382e81240d5469301 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 07916e3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild