$ git clone -n https://src.fedoraproject.org/rpms/rust-actix-rt.git /var/lib/mock/f40-build-2091392-50230/root/chroot_tmpdir/scmroot/rust-actix-rt
Cloning into '/var/lib/mock/f40-build-2091392-50230/root/chroot_tmpdir/scmroot/rust-actix-rt'...
$ git fetch origin fa7009cc07e25a89a896e76f574831222f8215bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-actix-rt
 * [new ref]         fa7009cc07e25a89a896e76f574831222f8215bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fa7009c Update to version 2.9.0; Fixes RHBZ#2235114