$ git clone -n https://src.fedoraproject.org/rpms/rust-orion.git /var/lib/mock/f41-build-59195263-6571621/root/chroot_tmpdir/scmroot/rust-orion
Cloning into '/var/lib/mock/f41-build-59195263-6571621/root/chroot_tmpdir/scmroot/rust-orion'...
$ git fetch origin 7f1d16921b67ab8c829b2c0bac75a2fc6a420fd9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-orion
 * [new ref]         7f1d16921b67ab8c829b2c0bac75a2fc6a420fd9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7f1d169 Update to version 0.17.10; Fixes RHBZ#2342211