$ git clone -n https://src.fedoraproject.org/rpms/corectrl.git /var/lib/mock/f40-build-1945616-25181/root/chroot_tmpdir/scmroot/corectrl
Cloning into '/var/lib/mock/f40-build-1945616-25181/root/chroot_tmpdir/scmroot/corectrl'...
$ git fetch origin 392e7477198bebcbbea63219ee6348a0f0246161:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/corectrl
 * [new ref]         392e7477198bebcbbea63219ee6348a0f0246161 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 392e747 docs: Update README.fedora.md (rh#2271961)