$ git clone -n https://src.fedoraproject.org/rpms/rust-getrandom.git /var/lib/mock/f39-build-1466754-33695/root/chroot_tmpdir/scmroot/rust-getrandom
Cloning into '/var/lib/mock/f39-build-1466754-33695/root/chroot_tmpdir/scmroot/rust-getrandom'...
$ git fetch origin d609e23b31f9d22f8044c7ecdba2151ef2488e71:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-getrandom
 * [new ref]         d609e23b31f9d22f8044c7ecdba2151ef2488e71 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d609e23 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild