$ git clone -n https://src.fedoraproject.org/rpms/ghc-psqueues.git /var/lib/mock/f40-build-743579-111265/root/chroot_tmpdir/scmroot/ghc-psqueues
Cloning into '/var/lib/mock/f40-build-743579-111265/root/chroot_tmpdir/scmroot/ghc-psqueues'...
$ git fetch origin fed19dce6bfabd9bd287d35041847c3dca9288a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-psqueues
 * [new ref]         fed19dce6bfabd9bd287d35041847c3dca9288a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fed19dc bump release