$ git clone -n https://src.fedoraproject.org/rpms/rust-moka.git /var/lib/mock/f45-build-43275-801/root/chroot_tmpdir/scmroot/rust-moka
Cloning into '/var/lib/mock/f45-build-43275-801/root/chroot_tmpdir/scmroot/rust-moka'...
$ git fetch origin f1aeb167e83d65433f3cc07a499c6e5885e64fd8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-moka
 * [new ref]         f1aeb167e83d65433f3cc07a499c6e5885e64fd8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f1aeb16 Update to version 0.12.16; Fixes RHBZ#2513006