$ git clone -n https://src.fedoraproject.org/rpms/rust-actix-web.git /var/lib/mock/f42-build-side-1-3539484-46565/root/chroot_tmpdir/scmroot/rust-actix-web
Cloning into '/var/lib/mock/f42-build-side-1-3539484-46565/root/chroot_tmpdir/scmroot/rust-actix-web'...
$ git fetch origin 5e9d4e6607d60077279e2aa9f5695dadf5beb1f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-actix-web
 * [new ref]         5e9d4e6607d60077279e2aa9f5695dadf5beb1f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e9d4e6 Update to version 4.11.0; Fixes RHBZ#2365578