$ git clone -n https://src.fedoraproject.org/rpms/rust-tower-http.git /var/lib/mock/f41-build-side-1-2897351-34638/root/chroot_tmpdir/scmroot/rust-tower-http
Cloning into '/var/lib/mock/f41-build-side-1-2897351-34638/root/chroot_tmpdir/scmroot/rust-tower-http'...
$ git fetch origin d547a098898b671ba9065b10732b74b7508570b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tower-http
 * [new ref]         d547a098898b671ba9065b10732b74b7508570b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d547a09 Update rust-brotli to 7.0