$ git clone -n https://src.fedoraproject.org/rpms/rust-actix-web.git /var/lib/mock/f41-build-side-1-2934398-35233/root/chroot_tmpdir/scmroot/rust-actix-web
Cloning into '/var/lib/mock/f41-build-side-1-2934398-35233/root/chroot_tmpdir/scmroot/rust-actix-web'...
$ git fetch origin f1941083e68d5f859b29406abf9078675ac6e907:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-actix-web
 * [new ref]         f1941083e68d5f859b29406abf9078675ac6e907 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f194108 Update to version 4.9.0; Fixes RHBZ#2303928