$ git clone -n https://src.fedoraproject.org/rpms/rust-linux-loader.git /var/lib/mock/f38-build-side-42-init-devel-1391784-30858/root/chroot_tmpdir/scmroot/rust-linux-loader
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1391784-30858/root/chroot_tmpdir/scmroot/rust-linux-loader'...
$ git fetch origin e06a2ba9d6a7c50f58518a6f71934b111797074b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-linux-loader
 * [new ref]         e06a2ba9d6a7c50f58518a6f71934b111797074b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e06a2ba Update to version 0.9.1