$ git clone -n https://src.fedoraproject.org/rpms/rust-tokio-openssl.git /var/lib/mock/f40-build-2251319-54126/root/chroot_tmpdir/scmroot/rust-tokio-openssl
Cloning into '/var/lib/mock/f40-build-2251319-54126/root/chroot_tmpdir/scmroot/rust-tokio-openssl'...
$ git fetch origin 9ba2c527f3e71b85c786db72187eae63cbe44345:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tokio-openssl
 * [new ref]         9ba2c527f3e71b85c786db72187eae63cbe44345 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ba2c52 Update to version 0.6.4; Fixes RHBZ#2254113