$ git clone -n https://src.fedoraproject.org/rpms/rust-actix-web.git /var/lib/mock/f41-build-1197246-22336/root/chroot_tmpdir/scmroot/rust-actix-web
Cloning into '/var/lib/mock/f41-build-1197246-22336/root/chroot_tmpdir/scmroot/rust-actix-web'...
$ git fetch origin b96fdd4114503613f17b51f3bdf8d0b633c6d39b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-actix-web
 * [new ref]         b96fdd4114503613f17b51f3bdf8d0b633c6d39b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b96fdd4 Update to version 4.8.0; Fixes RHBZ#2281481