$ git clone -n https://src.fedoraproject.org/rpms/libmongocrypt.git /var/lib/mock/f40-build-733911-105558/root/chroot_tmpdir/scmroot/libmongocrypt
Cloning into '/var/lib/mock/f40-build-733911-105558/root/chroot_tmpdir/scmroot/libmongocrypt'...
$ git fetch origin 6c83306ae73d49f1da94f463fe3bc5cd222891fb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmongocrypt
 * [new ref]         6c83306ae73d49f1da94f463fe3bc5cd222891fb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c83306 v1.8.2