$ git clone -n https://src.fedoraproject.org/rpms/rust-linux-loader.git /var/lib/mock/f40-build-1430293-23572/root/chroot_tmpdir/scmroot/rust-linux-loader
Cloning into '/var/lib/mock/f40-build-1430293-23572/root/chroot_tmpdir/scmroot/rust-linux-loader'...
$ git fetch origin ff04783c61eba430ad6b7bb5519020722f33c424:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-linux-loader
 * [new ref]         ff04783c61eba430ad6b7bb5519020722f33c424 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff04783 Update to version 0.11.0