$ git clone -n https://src.fedoraproject.org/rpms/ghc-text-manipulate.git /var/lib/mock/f40-build-743562-111265/root/chroot_tmpdir/scmroot/ghc-text-manipulate
Cloning into '/var/lib/mock/f40-build-743562-111265/root/chroot_tmpdir/scmroot/ghc-text-manipulate'...
$ git fetch origin 16800a7e2e5c83e49866aa8e79acaf789be0426e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-text-manipulate
 * [new ref]         16800a7e2e5c83e49866aa8e79acaf789be0426e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 16800a7 bump release