$ git clone -n https://src.fedoraproject.org/rpms/rust-just.git /var/lib/mock/f39-build-1527083-36125/root/chroot_tmpdir/scmroot/rust-just
Cloning into '/var/lib/mock/f39-build-1527083-36125/root/chroot_tmpdir/scmroot/rust-just'...
$ git fetch origin 61c25d541dda52164b9a9185863065649bedd9fc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-just
 * [new ref]         61c25d541dda52164b9a9185863065649bedd9fc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 61c25d5 Update to 1.15.0 (#2242815)