$ git clone -n https://src.fedoraproject.org/rpms/rust-lru.git /var/lib/mock/f41-build-side-1-2759109-31587/root/chroot_tmpdir/scmroot/rust-lru
Cloning into '/var/lib/mock/f41-build-side-1-2759109-31587/root/chroot_tmpdir/scmroot/rust-lru'...
$ git fetch origin 0c150bffad5f33ad1c6e870a7ac2fe40a811c89b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lru
 * [new ref]         0c150bffad5f33ad1c6e870a7ac2fe40a811c89b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c150bf Update to version 0.12.4; Fixes RHBZ#2301877