sync malfeasance proof during genesis (#4785)

## Motivation
malfeasance proof isn't synced during genesis period.

syncer/syncer.go

@@ -450,13 +450,11 @@ func (s *Syncer) syncAtx(ctx context.Context) error {
 		s.logger.WithContext(ctx).With().Info("atxs synced to epoch", s.lastAtxEpoch())
 
 		// FIXME https://github.com/spacemeshos/go-spacemesh/issues/3987
-		if s.ticker.CurrentLayer() > types.GetEffectiveGenesis() {
-			s.logger.WithContext(ctx).With().Info("syncing malicious proofs")
-			if err := s.syncMalfeasance(ctx); err != nil {
-				return err
-			}
-			s.logger.WithContext(ctx).With().Info("malicious IDs synced")
+		s.logger.WithContext(ctx).With().Info("syncing malicious proofs")
+		if err := s.syncMalfeasance(ctx); err != nil {
+			return err
 		}
+		s.logger.WithContext(ctx).With().Info("malicious IDs synced")
 		s.setATXSynced()
 		return nil
 	}

syncer/syncer_test.go

@@ -304,6 +304,7 @@ func startWithSyncedState(t *testing.T, ts *testSyncer) types.LayerID {
 
 	gLayer := types.GetEffectiveGenesis()
 	ts.mTicker.advanceToLayer(gLayer)
+	ts.mDataFetcher.EXPECT().PollMaliciousProofs(gomock.Any())
 	ts.mDataFetcher.EXPECT().GetEpochATXs(gomock.Any(), gLayer.GetEpoch())
 	require.True(t, ts.syncer.synchronize(context.Background()))
 	require.True(t, ts.syncer.ListenToATXGossip())
@@ -348,6 +349,7 @@ func TestSyncAtxs_Genesis(t *testing.T) {
 				for epoch := types.EpochID(1); epoch <= tc.lastSynced; epoch++ {
 					ts.mDataFetcher.EXPECT().GetEpochATXs(gomock.Any(), epoch)
 				}
+				ts.mDataFetcher.EXPECT().PollMaliciousProofs(gomock.Any())
 			}
 			require.True(t, ts.syncer.synchronize(context.Background()))
 			require.True(t, ts.syncer.ListenToATXGossip())
@@ -388,7 +390,6 @@ func TestSyncAtxs(t *testing.T) {
 			for lid := lyr; lid < tc.current; lid++ {
 				ts.mDataFetcher.EXPECT().PollLayerData(gomock.Any(), lid)
 			}
-
 			require.True(t, ts.syncer.synchronize(context.Background()))
 			require.Equal(t, tc.lastSyncEpoch, ts.syncer.lastAtxEpoch())
 		})
@@ -648,6 +649,7 @@ func TestSynchronize_RecoverFromCheckpoint(t *testing.T) {
 		withForkFinder(ts.mForkFinder))
 	// should not sync any atxs before current epoch
 	ts.mDataFetcher.EXPECT().GetEpochATXs(gomock.Any(), current.GetEpoch())
+	ts.mDataFetcher.EXPECT().PollMaliciousProofs(gomock.Any())
 	require.True(t, ts.syncer.synchronize(context.Background()))
 	require.Equal(t, current.GetEpoch(), ts.syncer.lastAtxEpoch())
 	types.SetEffectiveGenesis(types.FirstEffectiveGenesis().Uint32())