$ git clone -n https://src.fedoraproject.org/rpms/libcoap.git /var/lib/mock/f33-build-124203-39654/root/chroot_tmpdir/scmroot/libcoap
Cloning into '/var/lib/mock/f33-build-124203-39654/root/chroot_tmpdir/scmroot/libcoap'...
$ git reset --hard d42f786d7969a3b10dd9c5e55c9842dc870c586a
HEAD is now at d42f786 4.2.1