$ git clone -n https://src.fedoraproject.org/rpms/rust-getrandom.git /var/lib/mock/f45-build-41874-786/root/chroot_tmpdir/scmroot/rust-getrandom
Cloning into '/var/lib/mock/f45-build-41874-786/root/chroot_tmpdir/scmroot/rust-getrandom'...
$ git fetch origin ee70905ae00691f849887eeca32ef8a40b38886c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-getrandom
 * [new ref]         ee70905ae00691f849887eeca32ef8a40b38886c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ee70905 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild