$ git clone -n https://src.fedoraproject.org/rpms/ghc-fdo-notify.git /var/lib/mock/f39-build-1930678-43110/root/chroot_tmpdir/scmroot/ghc-fdo-notify
Cloning into '/var/lib/mock/f39-build-1930678-43110/root/chroot_tmpdir/scmroot/ghc-fdo-notify'...
$ git fetch origin 4e84d265128a2081d99e506e978b5617fa6897d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-fdo-notify
 * [new ref]         4e84d265128a2081d99e506e978b5617fa6897d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e84d26 bump release