$ git clone -n https://src.fedoraproject.org/rpms/rust-rpki.git /var/lib/mock/f41-build-1283283-23209/root/chroot_tmpdir/scmroot/rust-rpki
Cloning into '/var/lib/mock/f41-build-1283283-23209/root/chroot_tmpdir/scmroot/rust-rpki'...
$ git fetch origin 8990ac526dfb7bc05685e6b2c13a83a119948394:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rpki
 * [new ref]         8990ac526dfb7bc05685e6b2c13a83a119948394 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8990ac5 Update to version 0.18.4; Fixes RHBZ#2283813