$ git clone -n https://src.fedoraproject.org/rpms/rust-nu-cli.git /var/lib/mock/f41-build-side-1-3137277-39791/root/chroot_tmpdir/scmroot/rust-nu-cli
Cloning into '/var/lib/mock/f41-build-side-1-3137277-39791/root/chroot_tmpdir/scmroot/rust-nu-cli'...
$ git fetch origin 24c119b76f96b4eba61f7ad04651dceadca983a5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-nu-cli
 * [new ref]         24c119b76f96b4eba61f7ad04651dceadca983a5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 24c119b Update to version 0.99.1