$ git clone -n https://src.fedoraproject.org/rpms/entr.git /var/lib/mock/f39-build-1450373-32746/root/chroot_tmpdir/scmroot/entr
Cloning into '/var/lib/mock/f39-build-1450373-32746/root/chroot_tmpdir/scmroot/entr'...
$ git fetch origin 937c8f65601dae82fccf5c84f02a0cb7f07e784e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/entr
 * [new ref]         937c8f65601dae82fccf5c84f02a0cb7f07e784e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 937c8f6 Rebase to latest upstream release 5.4