$ git clone -n https://src.fedoraproject.org/rpms/rust-strsim.git /var/lib/mock/f40-build-2251268-54123/root/chroot_tmpdir/scmroot/rust-strsim
Cloning into '/var/lib/mock/f40-build-2251268-54123/root/chroot_tmpdir/scmroot/rust-strsim'...
$ git fetch origin 784e15743ae5ffd850aedc2a60cad6d0725ff92c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-strsim
 * [new ref]         784e15743ae5ffd850aedc2a60cad6d0725ff92c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 784e157 Update to version 0.10.1; Fixes RHBZ#2257161