$ git clone -n https://src.fedoraproject.org/rpms/rust-libdeflater.git /var/lib/mock/f42-build-side-1-3541402-46580/root/chroot_tmpdir/scmroot/rust-libdeflater
Cloning into '/var/lib/mock/f42-build-side-1-3541402-46580/root/chroot_tmpdir/scmroot/rust-libdeflater'...
$ git fetch origin 6a93ebc655687b033f87aa83d2d73359182116bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-libdeflater
 * [new ref]         6a93ebc655687b033f87aa83d2d73359182116bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a93ebc Update to 1.24.0 (close RHBZ#2365609)